A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of a bed at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of a bed at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a view of beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows hundreds of beds awaiting to be placed in rooms at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows hundreds of beds awaiting to be placed in rooms at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal working in a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal working in a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows Swedish Army personal and civilian construction workers working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a room with beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a room with beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows army personal walking past beds in a room at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows army personal walking past beds in a room at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows hundreds of beds awaiting to be placed in rooms at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows civilian construction workers working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

This picture taken on March 30, 2020 shows civilian construction workers working on a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows a room with beds at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows beds in a room at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)

A picture taken on March 30, 2020 shows equipment and beds in a room at a field hospital under construction in the Stockholm International Fairs facility, in prevision of an increase of patients infected by the novel coronavirus. (Photo by Jonathan NACKSTRAND / AFP)