The most important preventive measure against hepatitis “B” is opportune vaccinating of the population. It is necessary to do a hepatitis vaccination to each baby, and the quicker it will be done the more reliable, but not later than within the first days after the birth. At that, the vaccination should be fixed with three-four doses for bigger reliability.
After carrying out full vaccination the vaccinated people have a necessary level of antibodies to “B” virus which allows protecting the person from this type of hepatitis. Immunity remains within about twenty years; however, some people have it until the end of their life.
In those countries where the infection with hepatitis “B” virus is at a low level, all the same there are groups of risk, which should be vaccinated obligatory. These are people, who:
• require often blood transfuse, and to apply the products made on its basis;
• have the organ transplantation;
• use injecting drugs;
• have the sex partner with chronic hepatitis “B”, or numerous sexual contacts;
• work in medicine and have direct contact to a blood and the medicines made on its basis;
• visit places with a high threshold of hepatitis “B” case rate.
The vaccine is absolutely safe and highly effective. Its application allowed decreasing the morbidity level in some countries from 15% to less than 1%. Today183 countries made the vaccination of babies against hepatitis “B” obligatory having added it to the main schedules of vaccination.