As per SMDHU and NACI the following are the ONLY medical exemptions for which a physician or NP would write a note for a patient requesting medical exemption from getting two Canadian approved Covid-19 vaccines (to provide to an employer for example). With more Covid vaccine policies coming into effect in workplaces and society, these requests will become more common.
History of severe allergic reaction (e.g., anaphylaxis) after previous administration of a COVID-19 vaccine or a known severe allergic reaction (e.g., anaphylaxis) to a component of a COVID-19 vaccine. Individuals with a history of allergy not related to a component of authorized COVID-19 vaccines or other injectable therapy (e.g. foods, oral drugs, insect venom or environmental allergens) can receive COVID-19 vaccines without any special precautions.
Those who developed myocarditis or pericarditis following the first dose of an mRNA COVID-19 vaccine should not receive a second dose of mRNA COVID-19 vaccine until more information is available.
The following people should not receive the AstraZeneca /COVISHIELD COVID-19 vaccine, but can safely receive an mRNA vaccine (Pfizer-BioNTech or Moderna):
Those with history of venous or arterial thrombosis with thrombocytopenia
Those with history of capillary leak syndrome