Diseases of Public Health Significance

Legionella are a type of bacteria that are found in natural water sources which can also grow in human made water systems. These bacteria can cause Legionnaire’s disease and Pontiac fever, both of which present with flu-like symptoms, however Pontiac fever tends to be milder illness.

Yersiniosis (yer-sin-ee-o-sis) is an infection caused by the bacteria Yersinia. Yersinia is a strong bacteria that can continue to live in environments without much oxygen and in refrigeration.

West Nile virus (WNV) is a mosquito transmitted virus that can be transferred to humans from the bite of an infected mosquito. The first confirmed case in Canada was in 2002.

Shigellosis is an infectious disease caused by a group of bacteria called Shigella. People who eat food or drink water contaminated with Shigella bacteria can become ill with shigellosis.

Rubella, commonly known as German Measles, is an infection that affects the skin and lymph nodes.

Meningitis is an inflammation (swelling) of the membrane surrounding the brain and spinal cord.

Listeria is a bacteria that can cause a rare but serious illness called listeriosis. Pregnant women, the elderly, and those with a weakened immune system have a higher risk of becoming seriously ill.​

HIV (Human Immunodeficiency Virus) is the virus that causes Acquired Immune Deficiency Syndrome (AIDS).