Most vaccines, when given at the right time and in the right amount, will give lifelong protection. Sometimes you may need booster shots to continue the protection. If you are asked to get blood tests, they are checking to see if you are immune, or need more doses of certain vaccines.
The diseases that can be tested for by blood tests are: chickenpox, measles, mumps, rubella, and hepatitis B. When you work in certain areas, you may be at higher risk of being exposed to these diseases. Checking to make sure you are immune helps you and your employer know that you are protected.
Please note that the Immunization Clinic at the Middlesex-London Health Unit does NOT provide bloodwork requisitions. You must see your own health care provider or visit a walk-in clinic to have bloodwork ordered.
TB Skin Tests
You may be asked to have a one-step or two-step TB skin test for school, work or volunteering. This helps to assess whether you have been exposed to TB. Please note that this test is NOT available at the Middlesex-London Health Unit unless it is medically necessary for a certain purpose. The Immunization Clinic does not do TB skin tests for any education, volunteer or employer purposes. Ask your health care provider if they can do the test.
Pregnancy and Immunocompromising Conditions
If you are pregnant, or are immunocompromised due to illness or medication, speak to your health care provider prior to any vaccines being given to you.
The immunization clinic at the Middlesex-London Health Unit is available for vaccine administration. Please note that this clinic does not fill out any school or work forms, does not do TB skin tests, and cannot give you bloodwork requisitions.
It is advised that you speak with your own health care provider for vaccines. If coming to the health unit clinic, persons over the age of 18 must live or go to school in London or Middlesex County, and must have an appointment. To speak with a Public Health Nurse, or book an appointment, call 519-663-5317 ext 2330.
Vaccines across the lifespan
See the list of free and recommended vaccines (PDF) available to people in Ontario
See details about each type of vaccine given in Ontario