Testing & Treating Respiratory Illnesses

COVID-19 Vaccine booking information
Call 905‑546‑2424 ext. 7556
Contact numbers for additional health advice and isolation recommendations
Visit Health 811 online
Call 811 or toll-free at 1-866-797-0007
If you do not have symptoms but are at increased risk of severe COVID‑19, talk to your primary care provider or pharmacist in advance of potential COVID-19 infection to determine:
- your treatment options
- how to access treatment
- if you need to have bloodwork done
- if any changes to your usual medications will be needed
Keep rapid antigen tests on hand and check where your closest PCR testing location is.
COVID-19 testing eligibility
You are eligible for publicly-funded COVID-19 testing if you have COVID‑19 symptoms and belong to any of the following groups:
- people aged 65 years of age and older
- people aged 18 years of age and older who have at least one condition that puts them at higher risk of severe COVID-19 disease
- people who are immunocompromised
- residents and patients in certain high-risk settings including hospitals and congregate living settings with medically and socially vulnerable individuals (for example, in long-term care and other specific populations and settings)
- people in the context of suspected or confirmed outbreaks, as directed by the local public health unit
If you develop symptoms and you are eligible for a publicly-funded test, we recommend you contact your primary care provider or pharmacist to find out about test availability and to arrange to take a test.
Antiviral treatments
Antiviral treatments for COVID-19 (including Paxlovid and Remdesivir) can prevent serious illness if you take them in the first few days after symptoms start.
A physician, nurse practitioner or participating pharmacist may prescribe you antiviral treatment if you:
- have symptoms and test positive for COVID-19 (positive PCR or rapid antigen test)
- are at increased risk for severe outcomes from COVID-19 because you are either:
- 65 years of age or older (regardless of vaccine status and any other risk factors)
- Immunocompromised (regardless of age, vaccine status or prior COVID-19 infections), for example:
- recipient of solid organ transplant
- treatment for a malignant hematologic condition
- bone marrow–, stem cell transplant–, or transplant-related immunosuppressant use
- receipt of anti-CD20 drugs or B cell– depleting drugs (such as rituximab) in the past 2 years
- severe primary immunodeficiencies
- treatment for cancer, including solid tumours
- treatment with significantly immunosuppressing drugs (for example, a biologic in the past 3 months, oral immune-suppressing medication in the past months, oral steroid [20 mg/day of prednisone equivalent taken on an ongoing basis] in the past month, or immune-suppressing infusion or injection in the past 3 months)
- advanced HIV infection (treated or untreated)
- moderate primary immunodeficiencies
- renal conditions (such as hemodialysis, peritoneal dialysis, glomerulonephritis and dispensing of a steroid, eGFR<15mL/min/1.73m2)
- At increased risk to due to a combination of age and other medical conditions or risk factors based on an assessment by your health-care provider
Paxlovid is an antiviral medication taken by mouth at home which must begin within 5 days of the start of symptoms.
Paxlovid is known to interact with many medications and is linked to side effects. It is not appropriate for everyone, especially people on certain medications. Discuss with your health-care provider:
- any medications you are taking (including any over the counter medications, natural health products, vitamins, minerals, or supplements)
- any medical conditions or allergies you have
- if you have liver or kidney disease
- if you are pregnant, breastfeeding or using hormonal birth control (such as birth control pills or patches)
For more information on contraindications and drug interactions, visit Health Canada’s Paxlovid Consumer Information Summary.
Paxlovid is covered under the Ontario Drug Benefit (ODB) (including OHIP+ and Trillium Drug Benefit) for eligible adults (18+) who are ODB-eligible and who:
- are at increased risk of severe COVID-19 outcomes and meet the clinical criteria as specific on the Ontario Drug Benefit Formulary
- have a prescription
- have COVID-19 symptoms
- have a positive COVID-19 test
- obtain Paxlovid from an Ontario pharmacy
If you are not eligible for Ontario Drug Benefit coverage, the cost may be covered by your private insurance. You can apply for the Trillium Drug Program if you do not have an insurance plan that pays for 100% of your drug costs and spend about 4% or more of your after-tax household income on prescription drug costs.
Paxlovid is also covered under the Non-Insured Health Benefits (NIHB) program for eligible First Nations and Inuit individuals.
Remdesivir is a free, antiviral medication that is administered intravenously (IV) through Ontario Health atHome and certain other settings. Treatment must begin within 7 days of the start of symptoms and requires a referral from a physician (doctor) or nurse practitioner.
Remdesivir is only prescribed to people who cannot take Paxlovid because they either:
- are on certain medications
- have certain medical conditions
- have had symptoms longer than 5 days
How to get Remdesivir
- Your doctor or nurse practitioner must complete the appropriate referral form(s) and submit to Ontario Health atHome near you.
- A care coordinator from Ontario Health atHome will follow up with you directly.
- In most cases, you will receive infusions at a community nursing clinic. At-home service may be provided for homebound patients.
Antiviral treatments are not a replacement for vaccination or taking other recommended precautions.
Flu treatment
Antiviral treatments for the flu (Tamiflu) may reduce the severity and duration of infection if administered within 48 hours of symptom onset.
A physician, nurse practitioner or participating pharmacist may prescribe Tamiflu if you have symptoms of respiratory illness and are at higher risk of complications of influenza.
Post COVID-19 condition is when the symptoms of COVID-19 persist for more than 12 weeks after the infection. It's also known as long COVID, and can affect both adults and children.