Key to preventing new COVID variants is vaccination, expert says
Exposure to the natural virus gives people a robust immunity to a corona virus, and any variants. People that recovered from previous corona virus infections, including some colds, have proven to have a broad immune response. The 'Covid Vaccines' are not proven to confer immunity, that was not an endpoint of their trials. It is unknown how long the vaccines will confer protection, and they are planning booster shots for the variants, with no safety and efficacy trials.