Hepatitis A is prevalent everywhere, but it prevails in the least developed countries. This disease can also be called Botkin’s disease or jaundice. It is transmitted by eating contaminated water and food. Children are most often affected, although infection is becoming more prevalent in the adult population due to the lack of natural immunity, usually acquired in childhood. Implementation of a program of total vaccination of children in the early life can completely prevent the incidence of this pathology in adults.
Hepatitis A is the most common preventable infectious disease of travelers. Among the “non-vaccinated” tourists – visitors to developing countries (even for guests of five-star hotels!), The incidence of hepatitis A reaches three cases per 1000 travelers for each month of residence. “Only 0.3%!”, – you will say. Yes, only three out of a thousand. But how painful it will be if they are you, your spouse (or spouse) and your beloved child! Moreover, with a decrease in the “star” of the hotel or a decrease in hygiene standards, the incidence increases to 2% for each month of residence. And this is a serious risk – 20 sick from a thousand. In addition, we must not forget about the risk of infection with hepatitis A when visiting a restaurant (even expensive!) In his native Moscow or any other Russian city – our country belongs to the territories with an average (not low !!!) prevalence of this infection.
In our clinic for treatment of hepatitis, with the help of the best doctors – gastroenterologists, hepatologists in Moscow, you will be able to assess the risk of infection with hepatitis A, by the presence of antibodies to the virus in the blood.
Who needs protection from hepatitis A?
All previously unvaccinated persons traveling to countries with an average or high prevalence of hepatitis A virus infection or living and working in such countries should be vaccinated against hepatitis A. Vaccination is also necessary for people suffering from various chronic liver diseases, especially chronic hepatitis C. Infection with hepatitis A against a background of chronic hepatic pathology can lead to serious and sometimes fatal complications.
According to recommendations of the World Health Organization, children living in countries where the incidence of hepatitis A is higher than 20 cases per 100 thousand population, total vaccination is indicated. Russia, unfortunately, is on the list of such countries.
Vaccination against hepatitis A virus. Quality and safe vaccinations
For vaccination against hepatitis A we use a well-established vaccine worldwide, a solution that contains inactivated highly purified hepatitis A antigen (strain HM 175) adsorbed on aluminum hydroxide. The introduction of the vaccine promotes the formation of immunity against hepatitis A virus (HAV), causing the production of specific antibodies and the formation of memory lymphocytes. In clinical studies, which included individuals aged 18 to 50 years, the formation of antibodies to the hepatitis A virus antigen was detected in more than 88% of those vaccinated on day 15 and 99% at 1 month after the administration of a single dose of the vaccine.
Immunization with this vaccine on a properly selected schedule provides protection against hepatitis A for a period of not less than 20 years.