How was COVID-19 caused?
COVID-19, also known as the coronavirus disease, is caused by the SARS-CoV-2 virus. It is believed to have originated in bats and was transmitted to humans through another animal, possibly…
COVID-19, also known as the coronavirus disease, is caused by the SARS-CoV-2 virus. It is believed to have originated in bats and was transmitted to humans through another animal, possibly…