Is evaluation of Hepatitis A Immunity Required or not?

Hepatitis a virus (hav) infection is one of the most common causes of acute hepatitis and it is a serious health problem worldwide. hav infection is a vaccine preventable disease that can produce the lifelong immunity seen in many developed countries with the vaccination schedule administered to children; however this vaccine is not used in developing countries at the present time. improvements in food and water hygiene have caused a displacement of hepatitis a infection from children to adults which has increased mortality rates. therefore evaluation of hav immunity levels can help health authorities develop polices for prophylaxis especially in developing countries.