Giardiasis is an enteric disease caused when a person ingests the parasite Giardia, usually from water or food that has been contaminated. Person-to-person spread can also occur, including in child care settings. Symptoms of infection include diarrhea, gas, stomach pain, nausea and vomiting. Giardiasis can be prevented through careful hand washing and avoiding drinking untreated water.
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.