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Diseases and Infections

The human body is well equipped to defend itself from harmful bacteria and viruses. We filter things out of our body that we don’t need or that can cause us harm. Our cells and organs make “defenders” to destroy invading germs. Our skin and liquids (like tears and saliva) play a huge role in protecting us by keeping germs out. We can help our body. What we do can change how well our body can defend itself. Read tips on how to prevent infectious disease and how to protect others from infection. 

The Northwestern Health Unit provides services, surveillance, and information related to:

Lyme disease and ticks
Learn about Lyme disease, tick removal, and tick prevention.

Rabies and animal bites
Learn about rabies, preventing animal bites, and what to do if you have been bit.

Learn about TB signs and symptoms, health unit services, and how to prevent the disease from spreading.

West Nile Virus and mosquitos
Learn about WNV, how it is transmitted and steps you can take to reduce your risk.

Childhood infections
Learn more about the common cold, pink eye, ear infections, RSV and more illnesses that can affect children. 

Information for schools and daycares
Learn about the reporting requirements for schools and daycares related to infectious disease, as well as prevention and management guidelines

Learn more about:

​Other diseases and infections:



   Related Links

Blood and body fluid 

Public Health Question
  • Q:
    When washing my hands, does hand sanitizer work as well as soap and water?
    Hand sanitizer can be just as effective as soap when there is no visible dirt or oils​ on your hands. Hand sanitizers shouldn't however be a replacement to soap and water when it is available.