Varicella, or chickenpox, is caused by the varicella-zoster virus. It is easily spread from person-to-person by touching or breathing in the virus particles from chickenpox blisters. Common symptoms include fever and a blister-like skin rash. Herpes zoster, or shingles, is a painful rash that can occur many years following chickenpox. In Ontario, two doses of varicella vaccine are given to children and a herpes zoster vaccine is given to older adults.
To obtain or inquire about an immunization record, or for general immunization information, please contact your local public health unit.
PHO Grand Rounds: The Off-Target Effects of Antibiotics on the Human Microbiome
This presentation describes the composition and functions of the human microbiome, its relationship to human disease and the impact of antimicrobials on these functions.