Typhoid fever is caused by the bacteria Salmonella enterica Typhi. Symptoms range from fever with mild illness to severe disease. Transmission occurs through consuming contaminated food or water and can be spread from person to person. Typhoid fever is not typically acquired in Ontario. It is associated with travel to southern Asia and other developing countries. Proper hand hygiene and food preparation can help to prevent illness, as can immunization prior to travel to endemic areas.
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.