W. David Colby IV MSc MD FRCPC
What is altitude sickness? Altitude sickness occurs when you cannot...
South African tick-bite fever is a disease passed to humans...
Salmonella bacteria are commonly found in the intestines of birds,...
You get malaria from a bite by an infected mosquito....
Lyme disease can go through several stages. It may cause...
Source: U.S. Centers for Disease Control and Prevention (CDC). http://www.cdc.gov...
Two to three days after getting a tuberculin skin test,...
One symptom of Lyme disease is a red rash (called...
Source: Public Health Image Library (PHIL). James Gathany; William Nicholshon....
What is SARS? Severe acute respiratory syndrome (SARS) is a...
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