Deepta Bhattacharya is an associate professor of Immunobiology at the University of Arizona in Tuscon, Arizona.[1]Bhattacharya helped develop the antibody test being used by UArizona.[2]Bhattacharya and Nikolich-Zugich tracked antibody levels over several months in people who tested positive for coronavirus.[3]A research led by Indian-origin Bhattacharya, associate professor at the University of Arizona, has concluded that the antibodies against coronavirus last for around five months in a human body.[4]Using a combination of flavivirus infections, vaccinations and genetic mouse models, Dr. Bhattacharya and his team examined how memory B cells respond to subsequent flavivirus infections.[5]
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Deepta Bhattacharya, associate professor at the University of Arizona said, "We clearly see high-quality antibodies still being produced five to seven months after SARS-CoV-2 infection". "When a virus first infects cells, the immune system deploys short-lived plasma cells that produce antibodies to immediately fight the virus", Bhattacharya and Professor Janko Nikolich-Zugich from Arizona explained. The researchers added that the antibodies appear in blood tests within 14 days of infection.[3]
10/14/2020
After studying antibody samples collected from 6,000 people infected with coronavirus, researchers in the United States have concluded that immunity against Covid-19 lasts for at least five months. The research led by Indian-origin Deepta Bhattacharya, associate professor at University of Arizona, has concluded that the antibodies against SARS-CoV-2 virus last for around five months in a human body. Bhattacharya and Nikolich-Zugich tracked antibody levels over several months in people who tested positive for SARS-CoV-2 antibodies.[4]
10/14/2020
Memory B cells only produce antibodies if a second infection occurs. Although memory B cells recognize the new virus as a flavivirus and produce antibodies, those antibodies are unable to stop the new virus from infecting cells. Vaccines are designed to stimulate an immune response and prompt plasma cells and memory B cells to produce antibodies against a virus.[5]
10/01/2020