[ad_1] Caused by the severe acute respiratory syndrome agent coronavirus 2 (SARS-CoV-2), the 2019 coronavirus disease (COVID-19) pandemic has reached over 191 countries and infected more than 63.98 million people. Scientists around the world are racing to better understand the virus, how it is transmitted and how it affects the …
Read More »Deletion mutations of SARS-CoV-2 may have attenuated infectivity in some strains
