According to the World Health Organisation (WHO), after getting COVID-19, people do get an immune response, but this varies from person to person, and it depends on whether the patient had a mild infection or a more severe infection. If a person had a very mild or asymptomatic infection, then they may have very low levels of antibodies, it said. Therefore, WHO recommends that even if one has had COVID infection in the past, they should still go ahead with the vaccination, because the vaccine then serves as a boost to the immune system.
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