12 January 2021, Berlin: The television tower disappears behind a row of houses in Berlin-Mitte in the fog. Photo: Annette Riedl/dpa

12 January 2021, Berlin: The television tower can be seen behind a house in the Prenzlauer district. Photo: Annette Riedl/dpa

12 January 2021, Berlin: The television tower can be seen behind houses in the Prenzlauer district. Photo: Annette Riedl/dpa

12 January 2021, Bavaria, Munich: Two women wearing FFP2 masks board the train in a subway station. In Bavaria, from next Monday onwards, it will be compulsory to wear FFP2 masks on public transport and in retail outlets. Photo: Sven Hoppe/dpa

12 January 2021, Bavaria, Munich: A man and a woman wearing FFP2 masks board the train in a subway station. In Bavaria, from next Monday onwards, it will be compulsory to wear FFP2 masks on public transport and in retail outlets. Photo: Sven Hoppe/dpa

12 January 2021, Berlin: Behind a new building and a row of old houses in the Prenzlauer Berg district, Berlin's television tower rises into the air. Photo: Annette Riedl/dpa

12 January 2021, Yemen, Sanaa: A medic attends to patients inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: A medic attends to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: A medic attends to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: A medic attends to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: Medics attend to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: Medics attend to patients inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: Medics attend to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Yemen, Sanaa: Medics attend to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Bavaria, Munich: A woman wearing an FFP2 mask waits for the train in a subway station. In Bavaria, from next Monday onwards, it will be compulsory to wear FFP2 masks on public transport and in retail outlets. Photo: Sven Hoppe/dpa

12 January 2021, Bavaria, Munich: A woman wearing an FFP2 mask waits for the train in a subway station. In Bavaria, from next Monday onwards, it will be compulsory to wear FFP2 masks on public transport and in retail outlets. Photo: Sven Hoppe/dpa

12 January 2021, Bavaria, Munich: A woman wearing an FFP2 mask waits for the train in a subway station. In Bavaria, from next Monday onwards, it will be compulsory to wear FFP2 masks on public transport and in retail outlets. Photo: Sven Hoppe/dpa

12 January 2021, Yemen, Sanaa: Medics attend to a patient inside the intensive care unit of a hospital in Sanaa. Several Yemeni patients with different symptoms, including that of the coronavirus infection, have been admitted to the ICU to isolate them as a precautionary measure to avoid the spreading of COVID-19 or other viruses amid the ailing health system in war-torn Yemen. Photo: Hani Al-Ansi/dpa

12 January 2021, Berlin: The Brandenburg Gate can be seen as a shadowy reflection in a car mirror covered with raindrops. Photo: Paul Zinken/dpa

12 January 2021, Berlin: The Reichstag can be seen dimly behind a pane covered with raindrops. Photo: Paul Zinken/dpa

12 January 2021, Berlin: The Reichstag can be seen dimly behind a pane covered with raindrops. Photo: Paul Zinken/dpa

12 January 2021, Lower Saxony, Hanover: Raindrops bead on a Volkswagen logo at a VW dealer. The Corona crisis year of 2020 has also left its mark on Volkswagen's sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Lower Saxony, Hanover: Volkswagen brand vehicles are parked at a VW dealer. The Corona crisis year 2020 has also left its mark on Volkswagen sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Lower Saxony, Hanover: Volkswagen brand vehicles are parked at a VW dealer. The Corona crisis year 2020 has also left its mark on Volkswagen sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Lower Saxony, Hanover: Volkswagen brand vehicles are parked at a VW dealer. The Corona crisis year 2020 has also left its mark on Volkswagen sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Lower Saxony, Hanover: Volkswagen brand vehicles are parked at a VW dealer. The Corona crisis year 2020 has also left its mark on Volkswagen sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Lower Saxony, Hanover: Raindrops bead on a Volkswagen logo at a VW dealer. The Corona crisis year of 2020 has also left its mark on Volkswagen's sales. Overall, deliveries of the core brand in the largest car group fell by 15.1 percent compared to 2019. Photo: Julian Stratenschulte/dpa

12 January 2021, Bavaria, Friesenried: Cars drive on a road through the snow-covered landscape. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: Snow is blown across a country road by violent gusts of wind. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Kaufbeuren: Trees stick out of the landscape covered with fresh snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: Traffic signs and delineators stand along a snow-covered country road. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: Snow is blown across a country road by violent gusts of wind. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Kaufbeuren: A country road is covered with frozen snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: A car drives along a snow-covered road behind a snow fence in heavy snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: Cars drive across a snow-covered road in a flurry of snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, North Rhine-Westphalia, Engelskirchen: A gnarled tree stands in a square. The 15-kilometer rule for extreme Corona hotspots also applies in North Rhine-Westphalia since Tuesday. The regulation also affects the Oberbergischer Kreis. (To dpa/lnw: "15-kilometer rule now for four districts in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, North Rhine-Westphalia, Engelskirchen: A note saying "I want to hug my children again" hangs on a "wishing tree". The 15-kilometer rule for extreme Corona hotspots has also been in effect in North Rhine-Westphalia since Tuesday. The regulation also affects the Oberberg district, where Engelskirchen is located. (To dpa/lnw: "15-kilometer rule now for four districts in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on the R?merberg in Frankfurt. Snowfall has led to partly problematic road conditions in and around Frankfurt. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: The statue of Justice stands in front of the East Row on Frankfurt's R?merberg during snowfall. In Hesse, slippery roads are to be expected even at low altitudes. Photo: Frank Rumpenhorst/dpa

12 January 2021, Brandenburg, Bad Belzig: The shutters in front of the windows of a hair and beauty salon in the city centre are lowered. The banner in front of the entrance to a lottery shop says "Lotto. Luck lives here". Photo: Soeren Stache/dpa-Zentralbild/ZB

12 January 2021, Brandenburg, Bad Belzig: Next to the "Happy new Year" wishes in the glass of the front door of a closed downtown business is a note that reads, "Masks are mandatory here." Photo: Soeren Stache/dpa-Zentralbild/ZB

12 January 2021, Brandenburg, Bad Belzig: Magdeburger Stra?e, which leads to the market square in the city centre, is deserted during the weekly market, which traditionally takes place on Tuesdays and Thursdays. Photo: Soeren Stache/dpa-Zentralbild/ZB

12 January 2021, Brandenburg, Bad Belzig: A laughing Buddha figure stands next to assembled chairs on the empty patio of a downtown Nepali restaurant that may sell its food out of town. Photo: Soeren Stache/dpa-Zentralbild/ZB

12 January 2021, Berlin: The Quadriga on the Brandenburg Gate is reflected in a small puddle. The first doses of Moderna's new Covid 19 vaccine are due to arrive in Berlin today. Photo: Annette Riedl/dpa

12 January 2021, Berlin: Birds fly over the Brandenburg Gate. Today, the first doses of the new Covid 19 vaccine from the company Moderna are scheduled to arrive in Berlin. Photo: Annette Riedl/dpa

12 January 2021, Berlin: No one is on Pariser Platz in front of the Brandenburg Gate. Today the first doses of the new Covid-19 vaccine from the company Moderna are supposed to arrive in Berlin. Photo: Annette Riedl/dpa

12 January 2021, Berlin: The event dome inside the Gasometer in Sch?neberg on the campus of the European Energy Forum (EUREF) is being dismantled. The dome will then be transported to the future EUREF campus in Dusseldorf. Photo: Christophe Gateau/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: Goods ordered online, which have previously been arranged for specific pick-up times, are located in the checkout area of the IKEA store. Customers can collect the goods at the collection counter using contactless technology. Due to the restrictions during the Corona pandemic, many companies have introduced and expanded "Click & Collect". Photo: Rolf Vennenbernd/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: An employee looks for an order to be picked from goods ordered online in the checkout area of the IKEA store. Customers can pick up the goods at the pick-up counter using contactless technology. Due to the restrictions during the Corona pandemic, many companies have introduced and expanded "Click & Collect". Photo: Rolf Vennenbernd/dpa

12 January 2021, Saxony, Burkau: Police and THW are standing on the snowed-in Autobahn 4 near Burkau. Photo: LausitzNews/Toni Lehder/dpa-Zentralbild/dpa

12 January 2021, Saxony, Burkau: Traffic jams on the snow-covered Autobahn 4 near Burkau. Photo: LausitzNews/Toni Lehder/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: The model of an electric locomotive from the garden railway series stands on the track at Piko Spielwaren GmbH. The company presents new models on this day. In the Corona crisis, the model train manufacturer records increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: The H0 model of an ET21 PKP (r) electric locomotive stands next to other models on the track at Piko Spielwaren GmbH. It is one of the new models that the company boss is presenting on this day. In the Corona crisis, the model train manufacturer records increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: The H0 model of the BR 83.10 DR steam locomotive stands on the track at Piko Spielwaren GmbH. It is one of the new models presented by the company boss on this day. In the Corona crisis, the model train manufacturer records increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: Rene Wilfer (l), owner of Piko Spielwaren GmbH, and Matthias Fr?hlich (r), Product Manager at Piko, look at the so-called volume model of the "Glass Train" electric multiple unit. It is one of the new models of the garden railway, which is to be launched on the market in autumn 2021. In the Corona crisis, the model train manufacturer is seeing increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: Rene Wilfer, owner of Piko Spielwaren GmbH, looks at the smoke coming out of the chimney of an H0 model of the BR 83.10 DR steam locomotive. It is one of the new models that the company boss is presenting that day. During the Corona crisis, the model train manufacturer records increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Thuringia, Sonneberg: A flag with the Piko logo hangs on a house from the garden railway series at Piko Spielwaren GmbH. The company presents new models on this day. During the Corona crisis, the model train manufacturer records increased demand and rising sales. Photo: Martin Schutt/dpa-Zentralbild/dpa

12 January 2021, Rhineland-Palatinate, Mainz: The logo and lettering of the Biontech company is on the fa?ade of a new building in an industrial park in Mainz that is not yet completely finished. The Corona vaccine from Biontech and its US partner Pfizer is currently in high demand worldwide. Photo: Boris Roessler/dpa

12 January 2021, Rhineland-Palatinate, Mainz: The logo and lettering of the Biontech company is on the fa?ade of a new building in an industrial park in Mainz that is not yet completely finished. The Corona vaccine from Biontech and its US partner Pfizer is currently in high demand worldwide. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on mothballed Lufthansa passenger planes parked on the disused northwest runway at Frankfurt Airport. Due to the worldwide Corona pandemic and the associated restrictions, air traffic is still massively restricted. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on mothballed Lufthansa passenger planes parked on the disused northwest runway at Frankfurt Airport. Due to the worldwide Corona pandemic and the associated restrictions, air traffic is still massively restricted. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on mothballed Lufthansa passenger planes parked on the disused northwest runway at Frankfurt Airport. Due to the worldwide Corona pandemic and the associated restrictions, air traffic is still massively restricted. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on mothballed Lufthansa passenger planes parked on the disused northwest runway at Frankfurt Airport. Due to the worldwide Corona pandemic and the associated restrictions, air traffic is still massively restricted. Photo: Boris Roessler/dpa

12 January 2021, Hessen, Frankfurt/Main: Snow lies on mothballed Lufthansa passenger planes parked on the disused northwest runway at Frankfurt Airport. Due to the worldwide Corona pandemic and the associated restrictions, air traffic is still massively restricted. Photo: Boris Roessler/dpa

12 January 2021, Thuringia, Bad Klosterlausnitz: A lorry left the carriageway after snowfall on the Autobahn 9 near Bad Klosterlausnitz. Photo: Bernd Marz/dpa-Zentralbild/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: Walkers with dogs walk in snow kicked up by the strong wind. Photo: Marijan Murat/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: A man walks in front of houses in snow kicked up by strong wind. Photo: Marijan Murat/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: A ribbon blows in the wind on a signpost on the Breitenstein. Photo: Marijan Murat/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: Walkers with dogs walk in snow kicked up by the strong wind. Photo: Marijan Murat/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: Walkers with dogs walk in snow kicked up by the strong wind. Photo: Marijan Murat/dpa

12 January 2021, Baden-Wuerttemberg, Ochsenwang: A man is walking his dog in the early morning in the Swabian Alb. Photo: Marijan Murat/dpa

12 January 2021, Berlin: Vehicles stand at a traffic light at the Brandenburg Gate in sleet. Photo: Paul Zinken/dpa

12 January 2021, Lower Saxony, Quakenbruck: Police emergency vehicles escort a refrigerated truck from the grounds of the German Armed Forces' Artland Barracks. The supply and maintenance centre in Quakenbruck, Lower Saxony, is used as the central vaccine storage facility in Germany during the Corona crisis. Photo: Sina Schuldt/dpa

12 January 2021, North Rhine-Westphalia, Gummersbach: A street is deserted in the morning. The 15-kilometer rule for extreme Corona hotspots has also been in effect in North Rhine-Westphalia since Tuesday. The regulation affects the districts of H?xter, Minden-Lubbecke, Recklinghausen and the Oberbergischer Kreis. (To dpa/lnw: "15-kilometer rule now for four counties in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, North Rhine-Westphalia, Gummersbach: A woman walks through the pedestrian zone in the morning. The 15-kilometer-rule for extreme Corona hotspots is also valid in North Rhine-Westphalia since Tuesday. The regulation affects the districts of H?xter, Minden-Lubbecke, Recklinghausen and the Oberbergischer Kreis. (To dpa/lnw: "15-kilometer rule now for four counties in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, Saxony-Anhalt, Gardelegen: A forgotten jacket hangs in a classroom at Karl Marx secondary school. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grades here and the ninth grades of the Hauptschule, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB

12 January 2021, Bavaria, Regensburg: A small snow removal vehicle drives on a snow-covered street in the city centre. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the course of the day. Photo: Armin Weigel/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: A woman wearing mouth-to-nose protection walks past a permanently closed retail store downtown. Photo: Rolf Vennenbernd/dpa

12 January 2021, Bavaria, Munich: Two dogs enjoy the winter weather in the Bavarian capital and play in the snow. Photo: Peter Kneffel/dpa

12 January 2021, Saxony-Anhalt, Gardelegen: A barrier tape hangs in front of the deserted atrium of the Karl Marx secondary school. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grades here and the ninth grades of the Hauptschule, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB

12 January 2021, Saxony-Anhalt, Gardelegen: Chalk and sponge lie under a blank slate in a classroom at Karl Marx Secondary School. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grade and the ninth grade of the Hauptschule here, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB

12 January 2021, Saxony-Anhalt, Gardelegen: Chalk and sponge lie under a blank slate in a classroom at Karl Marx Secondary School. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grade and the ninth grade of the Hauptschule here, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB

12 January 2021, Berlin: Activists from "Fridays for Future" and "Ende Gelande" protest in front of the Willy Brandt House, the SPD party headquarters, banners "Clean natural gas is a dirty lie" and "Pipeline in crisis? Not with us!" against the Nord Stream 2 gas pipeline currently under construction. For the activists, natural gas is a fossil and thus climate-damaging energy source. Photo: Bernd von Jutrczenka/dpa

12 January 2021, Rhineland-Palatinate, Mainz: Still not quite finished is a new building of the company Biontech in an industrial area of Mainz. In front of it are signs with arrows for collection and delivery. The Corona vaccine from Biontech and its US partner Pfizer is currently in high demand worldwide. Photo: Boris Roessler/dpa

12 January 2021, Rhineland-Palatinate, Mainz: A new building of the company Biontech in an industrial park of Mainz is not quite finished yet. The Corona vaccine from Biontech and its US partner Pfizer is currently in high demand worldwide. Photo: Boris Roessler/dpa

12 January 2021, Rhineland-Palatinate, Mainz: The logo and lettering of the Biontech company is on the fa?ade of a new building in an industrial park in Mainz that is not yet completely finished. The Corona vaccine from Biontech and its US partner Pfizer is currently in high demand worldwide. Photo: Boris Roessler/dpa

12 January 2021, Bavaria, Nuremberg: A toboggan stands in the snow in the Luitpoldhain park. Photo: Daniel Karmann/dpa

12 January 2021, Bavaria, Nuremberg: Adults and children enjoy the winter weather in the Luitpoldhain park. The Hall of Honour can be seen in the background. Photo: Daniel Karmann/dpa

12 January 2021, Bavaria, Nuremberg: Adults and children enjoy the winter weather in the Luitpoldhain park. Photo: Daniel Karmann/dpa

12 January 2021, Bavaria, Nuremberg: Adults and children enjoy the winter weather in the Luitpoldhain park. Photo: Daniel Karmann/dpa

12 January 2021, Bavaria, Nuremberg: Adults and children enjoy the winter weather in the Luitpoldhain park. Photo: Daniel Karmann/dpa

12 January 2021, Bavaria, Nuremberg: A snowman stands in the park Luitpoldhain. Photo: Daniel Karmann/dpa

12 January 2021, North Rhine-Westphalia, Cologne: Raindrops have collected on the branch of a rose. Photo: Federico Gambarini/dpa

12 January 2021, Mecklenburg-Western Pomerania, Leizen: During a traffic control, compliance with the rules of entry into the Mecklenburg Lake District, which has the highest seven-day incidence in the northeast with 261, is monitored. Tourist entries are prohibited, and the 15-kilometer restriction also applies. Photo: Bernd Wustneck/dpa-Zentralbild/ZB

12 January 2021, Lower Saxony, Quakenbruck: Police emergency vehicles escort a refrigerated truck from the grounds of the German Armed Forces' Artland Barracks. The supply and maintenance centre in Quakenbruck, Lower Saxony, is used as the central vaccine storage facility in Germany during the Corona crisis. Photo: Sina Schuldt/dpa

12 January 2021, Lower Saxony, Quakenbruck: Police forces stand on the grounds of the Artland Barracks of the German Armed Forces. The supply and maintenance centre in Quakenbruck, Lower Saxony, is used as the central vaccine depot in Germany during the Corona crisis. Photo: Sina Schuldt/dpa

12 January 2021, Berlin: A woman walks in the rain on the sidewalk along the Stra?e des 17. Photo: Paul Zinken/dpa

12 January 2021, Berlin: Tracks can be seen in a light covering of snow at the Reichstag. Photo: Paul Zinken/dpa

12 January 2021, Berlin: Traffic is only dimly visible in a vehicle's wing mirror covered with raindrops. Photo: Paul Zinken/dpa

12 January 2021, Berlin: The Brandenburg Gate can be seen through the link of a cordon. Photo: Paul Zinken/dpa

12 January 2021, Berlin: Vehicles stand at a traffic light at the Brandenburg Gate in the early morning sleet. Photo: Paul Zinken/dpa

12 January 2021, Hamburg: People are walking along the Altona balcony in bright sunshine and are reflected in a puddle. Photo: Christian Charisius/dpa

12 January 2021, Hamburg: People are walking along the Altona balcony in bright sunshine and are reflected in a puddle. Photo: Christian Charisius/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: Armin Laschet (CDU), Minister President of North Rhine-Westphalia, speaks in the plenary session of the state parliament. In the special session, the North Rhine-Westphalian state parliament debates the measures of the new corona lockdown. Photo: Federico Gambarini/dpa

12 January 2021, Hamburg: A man and a woman are walking along the Altona balcony in bright sunshine and are reflected in a puddle next to a tree. Photo: Christian Charisius/dpa

12 January 2021, Mecklenburg-Western Pomerania, Leizen: During a traffic control, compliance with the rules of entry into the Mecklenburg Lake District, which has the highest seven-day incidence in the northeast with 261, is monitored. Tourist entries are prohibited, and the 15-kilometer restriction also applies. Photo: Bernd Wustneck/dpa-Zentralbild/ZB

12 January 2021, North Rhine-Westphalia, Gummersbach: A woman walks to the train station in the morning. The 15-kilometer rule for extreme Corona hotspots has also been in effect in North Rhine-Westphalia since Tuesday. The regulation affects the districts of H?xter, Minden-Lubbecke, Recklinghausen and the Oberbergischer Kreis. (To dpa/lnw: "15-kilometer rule now for four counties in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, Berlin: The event dome inside the Gasometer in Sch?neberg on the campus of the European Energy Forum (EUREF) is being dismantled. The dome will then be transported to the future EUREF campus in Dusseldorf. Photo: Christophe Gateau/dpa

12 January 2021, Berlin: The Brandenburg Gate is reflected in a small puddle. Today, the first doses of Moderna's new Covid 19 vaccine are due to arrive in Berlin. Photo: Annette Riedl/dpa

12 January 2021, Berlin: The event dome inside the Gasometer in Sch?neberg on the campus of the European Energy Forum (EUREF) is being dismantled. The dome will then be transported to the future EUREF campus in Dusseldorf. Photo: Christophe Gateau/dpa

12 January 2021, Bavaria, Friesenried: A car drives across a snow-covered road in a flurry of snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Brandenburg, Bad Belzig: Posters on two stands urge people to wear mouth-to-nose coverings during the weekly market traditionally held on Tuesdays and Thursdays in the marketplace in front of the town hall. Photo: Soeren Stache/dpa-Zentralbild/ZB

12 January 2021, Bavaria, Friesenried: A car drives across a snow-covered road in a flurry of snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Friesenried: A car drives across a snow-covered road in a flurry of snow. Photo: Karl-Josef Hildenbrand/dpa

12 January 2021, Bavaria, Regensburg: A snowplough removes snow from a street in the city centre. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the course of the day. Photo: Armin Weigel/dpa

12 January 2021, Bavaria, Regensburg: A small snow removal vehicle drives on a snow-covered street in the city centre. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the course of the day. Photo: Armin Weigel/dpa

12 January 2021, Hessen, Darmstadt: Kathleen Lebsa from Darmstadt pulls her little daughter Antonia on a sledge over the snow-covered Mathildenh?he with the Russian Chapel. Photo: Arne Dedert/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: In the checkout area of the IKEA store, employees search for goods ordered online that they have previously arranged for specific pick-up times. Customers can collect the goods at the collection counter using contactless technology. Due to the restrictions during the Corona pandemic, many companies have introduced and expanded "Click & Collect". Photo: Rolf Vennenbernd/dpa

12 January 2021, North Rhine-Westphalia, Duesseldorf: In the checkout area of the IKEA store, employees search for goods ordered online that they have previously arranged for specific pick-up times. Customers can collect the goods at the collection counter using contactless technology. Due to the restrictions during the Corona pandemic, many companies have introduced and expanded "Click & Collect". Photo: Rolf Vennenbernd/dpa

12 January 2021, North Rhine-Westphalia, Engelskirchen: The platform in Engelskirchen in the Oberberg district is empty in the morning. The 15-kilometer rule for extreme Corona hotspots is also valid in North Rhine-Westphalia since Tuesday. The regulation also affects the Oberberg district. (To dpa/lnw: "15-kilometer rule now for four districts in NRW: With exceptions") Photo: Oliver Berg/dpa

12 January 2021, Mecklenburg-Western Pomerania, Ludwigslust: Manuela Schwesig (SPD, 2nd from left), the Minister President of Mecklenburg-Vorpommern, talks to citizens who have been vaccinated against Covid-19 with Biontech/Pfizer's vaccine during a visit to a vaccination centre. Photo: Jens Buttner/dpa-Zentralbild/dpa

12 January 2021, Mecklenburg-Western Pomerania, Ludwigslust: Manuela Schwesig (SPD, 2nd from right), the Minister President of Mecklenburg-Vorpommern, talks to citizens who have been vaccinated against Covid-19 with Biontech/Pfizer's vaccine during a visit to a vaccination centre. Photo: Jens Buttner/dpa-Zentralbild/dpa

12 January 2021, Bavaria, Regensburg: A snowplough removes snow from a street in the city centre. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the course of the day. Photo: Armin Weigel/dpa

12 January 2021, Bavaria, Regensburg: A pedestrian with an umbrella is walking on a snow-covered street in the city center. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the day. Photo: Armin Weigel/dpa

12 January 2021, Bavaria, Regensburg: A pedestrian with an umbrella is walking on a snow-covered street in the city center. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the day. Photo: Armin Weigel/dpa

12 January 2021, Bavaria, Regensburg: A woman walks on a snow-covered street in the city centre. Between five and ten centimetres of fresh snow are expected to fall in the Upper Palatinate and Swabia during the day. Photo: Armin Weigel/dpa

12 January 2021, Saxony-Anhalt, Gardelegen: A forgotten jacket hangs in a classroom at Karl Marx secondary school. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grades here and the ninth grades of the Hauptschule, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB

12 January 2021, Saxony-Anhalt, Gardelegen: The deserted schoolyard of the Karl Marx secondary school. After the end of the Christmas holidays, the schools in the country are almost deserted. Only the graduating classes, such as the tenth grade and the ninth grade of the secondary school here, have attendance classes. Where normally countless students go to class or spend the breaks there is now silence. Due to the still comparatively tense Corona situation, stricter rules have been in effect in Saxony-Anhalt as well as nationwide since. Schools are to remain in emergency operation until at least the end of January. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/ZB