Viral Hemorrhagic Fevers
Viral hemorrhagic fevers (VHFs) include a number of severe, life-threatening illnesses caused by viruses such as Ebola, Marburg, and Lassa. These viruses affect the body’s vascular system and can lead to significant internal bleeding and organ failure, and are primarily spread through direct contact with infected bodily fluids. Although outbreaks of VHFs have occurred in many parts of the world, there have been no confirmed cases in Ontario.
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.