Hepatitis A virus. Transmission electron micrograph (TEM) of a cluster of Hepatitis A virus particles. Here,viruses appear circular in shape (red),approximately 25-30 nanometres in diameter. These small RNA viruses are similar in structure to the Picornavirus group (which includes enterovirus and rhinovirus). Hepatitis A virus is the agent which causes infectious hepatitis. The virus attacks the liver producing liver inflammation and fever,followed by jaundice. The virus is excreted in the faeces. Hepatitis A is transmitted by water or food contaminated with infected faeces. The disease is more prevalent in warm countries with poor standards of hygiene | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Green, Richard J. |
Taille de l’image : | 4637 px × 3151 px |
Model Release : | Non requis |
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