Smallpox is a contagious disease caused by the variola virus. The disease was eradicated globally as a result of vaccination, with the last naturally occurring case occurring in 1977. It does remain as a potential bioterrorism weapon. Smallpox was transmitted from person-to-person through contact with smallpox sores and through coughing or sneezing. Symptoms of smallpox include a fever and a distinct rash.
To obtain or inquire about an immunization record, or for general immunization information, please contact your local public health unit.
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.