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Friday, June 4, 2021 | 1:40 p.m. | Windsor-Essex County

As of 8 a.m. Saturday, June 5, individuals 70 years of age and older in 2021, as well as individuals who received their first mRNA (Pfizer or Moderna) COVID-19 vaccine dose on or before March 31, will be eligible to book their second dose vaccine at a mass vaccination clinic, local pharmacy, or healthcare provider office that is administering vaccines.

As of 8 a.m. on Monday, June 7, individuals who received a first dose of the AstraZeneca vaccine at least 12-weeks ago and who have not yet received their second dose, will be able to have the option of receiving their second dose of AstraZeneca through participating pharmacies or primary care providers or book a second dose appointment for an mRNA vaccine (Pfizer BioNTech or Moderna) through mass vaccinations clinics, pharmacies, or primary care providers. The decision to mix vaccines from different manufacturers is in alignment with updated guidance from the National Advisory Committee on Immunization (NACI) recommendation and supported by the Ontario government, in consultation with the Chief Medical Officer of Health and other health experts.

Appointments are still required for first and second COVID-19 vaccine doses at all of the mass vaccination clinics, participating pharmacies, and participating healthcare providers. No walk-ins will be permitted. When attending your booked appointment, please bring your health card or other identification document such as a driver’s license or passport.

Those eligible to book an appointment do not need to receive the second vaccine in the same location as the first. We encourage all eligible community members who want to attend a mass vaccination clinic to book online through the online booking system or by calling the vaccination booking call centre at 226-773-2200 to make an appointment. Due to expected call volumes initially, it may take multiple attempts to speak with a Windsor-Essex County Health Unit representative.

Despite the vaccine rollout, please continue to practice public health measures to help prevent the spread of COVID-19 in our community:

  • Maintain a 2 metre distance from others.
  • Limit your contacts to your household only.
  • Wash your hands with soap and water thoroughly and often.
  • Avoid touching your eyes, nose, and mouth with unwashed hands.
  • Use a medical or non-medical mask (e.g., cloth) in public settings.
  • Cover mouth & nose with a tissue or use the inside of your elbow when you cough or sneeze.
  • Stay home and do not go to work or school if you are sick. 

For more information about COVID-19 vaccine booking and eligibility, please visit For comprehensive information about COVID-19 vaccines including facts, myths, FAQs, vaccination statistics, and more, please visit You can also subscribe to receive email updates from the Windsor Essex County Health Unit about COVID-19 vaccines.

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