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US hits milestone in Covid-19 pandemic with more vaccinated than cases

Lasting Immunity Found After Recovery From COVID-19

T cells can mount attacks against many SARS-CoV-2 targets--even on new virus variant

 E-Mail IMAGE: Transmission electron micrograph of SARS-CoV-2 virus particles, isolated from a patient. Image captured and color-enhanced at the NIAID Integrated Research Facility (IRF) in Fort Detrick, Maryland. view more  Credit: NIAID LA JOLLA A new study led by scientists at La Jolla Institute for Immunology (LJI) suggests that T cells try to fight SARS-CoV-2 by targeting a broad range of sites on the virus beyond the key sites on the virus s spike protein. By attacking the virus from many angles, the body has the tools to potentially recognize different SARS-CoV-2 variants. The new research, published January 27, 2021 in Cell Report Medicine, is the most detailed analysis so far of which proteins on SARS-CoV-2 stimulate the strongest responses from the immune system s helper CD4+ T cells and killer CD8+ T cells.

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