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if you have tested positive for covid-19 can the vaccine...
if you have tested positive for covid-19 can the vaccine cure you?
No. Unlike medicines that treat or cure diseases, vaccines prevent you from getting sick with the disease in the first place. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). When you get a vaccine, your immune system responds to the vaccine the same way it would to the real germ; by making antibodies to the germ in the vaccine which protects you from that disease. You can find more information about how vaccines work here.
Due to the severe health risks associated with COVID-19 and the fact that re-infection with COVID-19 is possible, people may be advised to get a COVID-19 vaccine even if they have been sick with COVID-19 before.
At this time, experts do not know how long someone is protected from getting sick again after recovering from COVID-19. The immunity someone gains from having an infection, called natural immunity, varies from person to person. Some early evidence suggests natural immunity may not last very long, but BCCDC will keep the public informed as new evidence becomes available.