The younger a person is when infected with hepatitis B virus, the greater his or her chance of developing chronic hepatitis B. Approximately 90% of infected infants will develop chronic infection. The risk goes down as a child gets older. Approximately 25–50% of children infected between the ages of one and five years will develop chronic hepatitis. The risk drops to 6–10% when a person is infected over five years of age. Worldwide, most people with chronic hepatitis B were infected at birth or during early childhood. Although a majority of adults develop symptoms from acute hepatitis B virus infection, many young children do not therefore the virus can unknowingly be spread to
The younger a person is when infected with hepatitis B virus, the greater his or her chance of developing chronic hepatitis B. Approximately 90% of infected infants will develop chronic infection. The risk goes down as a child gets older. Approximately 25–50% of children infected between the ages of one and five years will develop chronic hepatitis. The risk drops to 6–10% when a person is infected over five years of age. Worldwide, most people with chronic hepatitis B were infected at birth or during early childhood. Although a majority of adults develop symptoms from acute hepatitis B virus infection, many young children do not therefore the virus can unknowingly be spread to