Is vaccination necessary if you’ve had Covid-19?
If you have had Covid-19, it’s almost certain that you will have some immunity to coronavirus/SARS CoV-2 to protect you against future infections. However, scientific experts do not yet know exactly how long you are protected, nor what degree of protection you may have from a virus of a different variant that also causes Covid-19 infection.
There is also a possibility that immunity to Covid-19 may only last for a short period of time, with preliminary evidence suggesting that neutralising antibodies against SARS-CoV-2 remain in your blood for approximately five to six months after infection. Should this protection from antibodies wane over time, individuals may be susceptible to a future, but likely milder, form of Covid-19.
For these reasons, the National Department of Health (NDoH) recommends that even those who have had Covid-19 before should get the vaccine.
Vaccines continue to provide a degree of efficacy against variants of Covid-19 and vaccine manufacturers are continually adapting vaccines to make them more effective against new variants of Covid-19.
As more evidence becomes available about how vaccines offer protection against Covid-19, we will keep you updated.
Also read more about long Covid elsewhere in this issue.