Hepatitis “A” is a viral liver disease which proceeds in a mild or serious form. This virus is considered to be the illness of “dirty arms”, as it transmitted at the use of unwashed food, not cleared water or at direct contact to the sick person. Hepatitis “A” always goes hand in hand together with a bad sanitary order.
Epidemics connected to this virus can capture a large number of people and lead to significant economic expenses. Keeping the rules of sanitary hygiene and vaccination may serve as protection against the virus.
Difference of hepatitis “A” from “B” and “C” is that it never leads to development of a chronic liver disease and very seldom has a lethal outcome. However this type of hepatitis can show the symptomatology weakening health and leading to an acute hepatic failure which is famous for a high lethality. Several weeks and even months can be required for restoring former working capacity of the person. Consequences of the disease can be felt for very long time.
The virus of hepatitis “A” is a frequent reason of becoming infected by means of use of dirty food. Epidemics provoked by dirty products and water can be “explosive”. The example is hepatitis in Shanghai (1988) during which more than three hundred thousands of people got sick.
Viruses of this type constantly circulate in the person’s environment and even are capable to sustain processing which is used on production for deactivation of pathogenic bacteria.