Do COVID-19 vaccines interrupt transmission? Leading scientists are now recruiting thousands of college students to find out
Scientists find evidence that the new coronavirus infects cells in the mouth – saliva may play a role in the transmission of COVID
Minnesota people are leaving again. So, how low are the risks of external transmission of the COVID-19?
COVID-19 vaccines starting to reduce coronavirus transmission in Los Angeles County, said the health director
Los Angeles’ Covid-19 transmission rate has been rising in recent weeks; It is not clear whether cases, hospitalizations and deaths will also increase
