Shigellosis is an infection caused by Shigella bacteria. Infection may occur after ingesting fecally-contaminated food, beverages or recreational water, from sexual contact with an infected person and from contact with contaminated surfaces. Only a small number of bacteria are needed to make people ill. Symptoms can include diarrhea, stomach pain and fever. Young children, travellers to developing countries and men who have sex with men are at higher risk for shigellosis.
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.