Hepatitis A is an acute liver infection caused by a virus. Infections occur from ingesting food or water contaminated by infected feces and it can be easily passed from person to person. Most young children do not have symptoms or have an unrecognized infection. Most adults with hepatitis A have symptoms, including fatigue, abdominal pain, nausea and jaundice. Hepatitis A is often associated with travel to places where it is more common. A vaccine is available to prevent the disease.
PHO Grand Rounds: Measles and varicella maternal antibody waning in Ontario infants
In this presentation, we will outline the epidemiology of measles and varicella. We will also describe a study performed at the Hospital for Sick Children in Toronto to investigate immunity to measles and varicella in infants that are less than 12 months of age.