Here's who is eligible to book a third COVID-19 vaccine dose in Ottawa today

The COVID-19 vaccine immunization clinic at the Nepean Sportsplex in Ottawa, Ont. (CTV News Ottawa)

OTTAWA — Thousands of Ottawa residents will be able to book their booster shot today, as Ontario expands eligibility for a third dose of the COVID-19 vaccine.

The Ontario government says the following vulnerable populations will be able to book a third dose, as long as they received their second dose at least six months ago.

Starting at 8 a.m. Saturday, eligible Ottawa residents can book an appointment for a third COVID-19 vaccine through the provincial COVID-19 vaccination portal or by calling the Provincial Vaccine Contact Centre at 1-833-943-3900.

Ottawa Public Health says you should book an appointment for a third dose, as drop-in availability is limited.

Ottawa Public Health will operate four community clinics seven days a week. The clinics are located at:

Residents can also reach out to local pharmacies to book an appointment for the booster dose.

The Ottawa Hospital and CHEO will be hosting a COVID-19 vaccination clinic for health care workers and their family members. Details will be sent to employees.

"A third dose of the COVID-19 vaccine will be given at least twenty-four weeks (six months) after the second dose. All booster doses will be mRNA vaccines," said Ottawa Public Health in a statement.

"Mixing COVID-19 vaccines is safe, effective, and enables Ontarians to benefit from the protection of a booster dose. We encourage all those eligible to book an appointment and get their third COVID-19 vaccine at their local pharmacy or a community clinic."

In January, the Ontario government plans to expand eligibility for booster shots to all Ontarians, pending clinical information.

RENFREW COUNTY

The Renfrew County and District Health Unit has expanded eligibility for a COVID-19 vaccination third dose appointment in line with the provincial guidelines, along with individuals who are immunocompromised.

The health unit says the following vulnerable populations can book a booster shot:

All eligible residents will be able to access vaccination clinics across Renfrew County and District or visit a participating pharmacy.