BEIJING - Ngalaba ahụike steeti Espirito Santo, Brazil, kwupụtara na Tuesday na ọnụnọ nke ọgwụ mgbochi IgG, kpọmkwem maka nje SARS-CoV-2, ka achọpụtara na nlele serum site na Disemba 2019. Ngalaba ahụike kwuru na 7,370 serum sample. a chịkọtara n'etiti D ...
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