COVID, Cold and Flu Clinics COVID, Cold and Flu Clinics Starting November 29th – do not have to be a client of the Centre to book and Appointment. Call 613.478.1906 ext. 294 COVID 19 Gateway Community Health Centre is committed to supporting our community through the COVID-19 pandemic. We will update this page as we receive updates and information. Vaccine Booking & Eligibility Hastings ...