Review on the Epidemiology and Prevention and Control of Hepatitis A

This paper reviews the latest global and local situation of hepatitis A and examines the prevention and control measures of hepatitis A in Hong Kong.

Hepatitis A is inflammation of the liver caused by the hepatitis A virus (HAV). It is one of the most frequent causes of foodborne infection. It occurs sporadically and in epidemics worldwide. Every year there are an estimated 1.4 million cases of hepatitis A worldwide. Regions with high HAV endemicity include parts of Africa and Asia. The disease is closely associated with unsafe water, inadequate sanitation and poor personal hygiene.