BECKHAM
17-08-2020, 02:06 AM
The test has identified past infection even when an antibodies test is negative, scientists say.
for more .... (https://www.bbc.co.uk/news/uk-wales-53764640)
for more .... (https://www.bbc.co.uk/news/uk-wales-53764640)
مشاهدة النسخة كاملة : Coronavirus: Test for Covid-19 T cells immunity developed