Keith D Johnson on Nostr: 4/ "When immune cells arrive on the scene, the SARS-CoV-2 virus is able to infect ...

4/ "When immune cells arrive on the scene, the SARS-CoV-2 virus is able to infect them as well. Monocytes, which are involved in ushering in the adaptive immune response, get infected by SARS-CoV-2, and are reprogrammed to prevent them from presenting antigens and teaching the adaptive immune system what to look for. T cells rush to become cell killers, causing the signature massive tissue damage that can be fatal in severe cases. Every infection depletes your body’s reserve of naïve T cells — that pool of “blank” immune cells your body keeps on hand for later deployment and specialization — damaging your ability to mount an effective immune response to future infections — including other pathogens. This is why, no matter how many people get infected or vaccinated, we have not — and will not — reach “herd immunity.”