After people recover from infection with a virus, the immune system retains a memory of it. Immune cells and proteins that circulate in the body can recognize and kill the pathogen if it’s encountered again, protecting against disease and reducing illness severity. This long-term immune protection involves several components. Antibodies — proteins that circulate in the blood — recognize foreign substances like viruses and neutralize them. Different types of T cells help recognize and kill pathogens. B cells make new antibodies when the body needs them. All of these immune-system components have been found in people who recover from SARS-CoV-2, …read more
Source: Sott health news feed
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