By Zachary Stieber A federal health agency on Friday rejected the notion that a new variant of COVID-19 that originated in the United States exists. “Researchers have been monitoring U.S. strains since the pandemic began, including 5,700 samples collected in November and December,” a Centers for Disease Control and Prevention spokesman told news outlets. “To date, neither researchers nor […]
Tag: Coronavirus
Coronaviruses are a group of viruses that cause diseases in mammals and birds. In humans, the virus causes respiratory infections which are typically mild including the common cold but rarer forms like SARS and MERS can be lethal.
