Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.

Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.

Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.

Rotavirus particle, computer illustration. This virus particle consists of an RNA (ribonucleic acid) core surrounded by a triple layered capsid. Rotaviruses are probably the most common viruses to infect humans and animals. They are associated with gastroenteritis and diarrhoea - typically infecting the intestines of children aged from 6 months to 3 years. The viruses are spread in faeces.

Treponema denticola bacteria, computer illustration. This spirochaete bacterium is from the mouth of a person with periodontal disease, a disorder of the supporting tissues around the teeth. T. denticola occurs in the mouths of all primates.

Treponema denticola bacteria, computer illustration. This spirochaete bacterium is from the mouth of a person with periodontal disease, a disorder of the supporting tissues around the teeth. T. denticola occurs in the mouths of all primates.

Treponema denticola bacteria, computer illustration. This spirochaete bacterium is from the mouth of a person with periodontal disease, a disorder of the supporting tissues around the teeth. T. denticola occurs in the mouths of all primates.

Treponema denticola bacteria, computer illustration. This spirochaete bacterium is from the mouth of a person with periodontal disease, a disorder of the supporting tissues around the teeth. T. denticola occurs in the mouths of all primates.

Computer illustration of spirochaete bacteria Treponema pallidum, which cause syphilis. Syphilis is usually sexually transmitted, but may also pass from an infected pregnant woman to her unborn child (congenital syphilis). The last of three stages of syphilis is the most severe and can cause damage to the heart, blood vessels, brain and spinal cord. Treatment with penicillin drugs is effective if administered during the early stages.

Computer illustration of spirochaete bacteria Treponema pallidum, which cause syphilis. Syphilis is usually sexually transmitted, but may also pass from an infected pregnant woman to her unborn child (congenital syphilis). The last of three stages of syphilis is the most severe and can cause damage to the heart, blood vessels, brain and spinal cord. Treatment with penicillin drugs is effective if administered during the early stages.

Computer illustration of spirochaete bacteria Treponema pallidum, which cause syphilis. Syphilis is usually sexually transmitted, but may also pass from an infected pregnant woman to her unborn child (congenital syphilis). The last of three stages of syphilis is the most severe and can cause damage to the heart, blood vessels, brain and spinal cord. Treatment with penicillin drugs is effective if administered during the early stages.

Computer illustration of spirochaete bacteria Treponema pallidum, which cause syphilis. Syphilis is usually sexually transmitted, but may also pass from an infected pregnant woman to her unborn child (congenital syphilis). The last of three stages of syphilis is the most severe and can cause damage to the heart, blood vessels, brain and spinal cord. Treatment with penicillin drugs is effective if administered during the early stages.

Computer illustration of spirochaete bacteria Treponema pallidum, which cause syphilis. Syphilis is usually sexually transmitted, but may also pass from an infected pregnant woman to her unborn child (congenital syphilis). The last of three stages of syphilis is the most severe and can cause damage to the heart, blood vessels, brain and spinal cord. Treatment with penicillin drugs is effective if administered during the early stages.

Chlamydia infection. Computer illustration of a cell infected with Chlamydia trachomatis bacteria. Elementary bodies (EBs, small green spheres), the non-replicating infectious form of the bacteria are seen outside the host cell. EBs infect the cell and are transformed into reticulate bodies (RB), which are replicating form. RBs are seen as a group of small red spheres near the nucleus (purple) of the cell. Chlamydia is a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness.

Chlamydia infection. Computer illustration of a cell infected with Chlamydia trachomatis bacteria. Elementary bodies (EBs, small green spheres), the non-replicating infectious form of the bacteria are seen outside the host cell. EBs infect the cell and are transformed into reticulate bodies (RB), which are replicating form. RBs are seen as a group of small red spheres near the nucleus (purple) of the cell. Chlamydia is a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness.

Chlamydia infection. Computer illustration of a cell infected with Chlamydia trachomatis bacteria. Elementary bodies (EBs, small dark green spheres), the non-replicating infectious form of the bacteria are seen outside the host cell. EBs infect the cell and are transformed into reticulate bodies (RB), which are replicating form. RBs are seen as a group of small light green spheres near the nucleus (dark green) of the cell. Chlamydia is a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness.

Chlamydia infection. Computer illustration of a cell infected with Chlamydia trachomatis bacteria. Elementary bodies (EBs, small green spheres), the non-replicating infectious form of the bacteria are seen outside the host cell. EBs infect the cell and are transformed into reticulate bodies (RB), which are replicating form. RBs are seen as a group of small red spheres near the nucleus (purple) of the cell. Chlamydia is a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness.

Bacterial vaginosis. Computer illustration of Gardnerella vaginalis bacteria (rods) attached to epithelial cells, known as clue cells. G. vaginalis is one of the species of bacteria that cause vaginosis. Clue cells are a diagnostic feature of bacterial vaginosis found during light microscopy of a cervical smear. Bacterial vaginosis causes an abnormal vaginal discharge with an unpleasant fishy smell. It is caused by an imbalance of the normal vaginal flora. Treatment is with antibiotics.

Bacterial vaginosis. Computer illustration of Gardnerella vaginalis bacteria (rods) attached to an epithelial cell, known as a clue cell. G. vaginalis is one of the species of bacteria that cause vaginosis. Clue cells are a diagnostic feature of bacterial vaginosis found during light microscopy of a cervical smear. Bacterial vaginosis causes an abnormal vaginal discharge with an unpleasant fishy smell. It is caused by an imbalance of the normal vaginal flora. Treatment is with antibiotics.

Bacterial vaginosis. Computer illustration of Gardnerella vaginalis bacteria (rods) attached to epithelial cells, known as clue cells. G. vaginalis is one of the species of bacteria that cause vaginosis. Clue cells are a diagnostic feature of bacterial vaginosis found during light microscopy of a cervical smear. Bacterial vaginosis causes an abnormal vaginal discharge with an unpleasant fishy smell. It is caused by an imbalance of the normal vaginal flora. Treatment is with antibiotics.