Coronavirus Disease Covid
By the end of that month, it was showing up in the U.S. Viruses are always changing, and that can cause a new variant, or strain, of a virus to form. A variant usually doesn't affect how the virus works. Treatments For Other Coronaviruses Visit the websites of your state’s health department or the U.S. Department of Health & Human Services to find out where testing is offered near you. The 2019 coronavirus hasn’t been definitively linked to a specific animal. Almost 75 percent of people who are asymptomatic when they receive a positive polymerase chain reaction test result will remain asymptomatic. A December 2020 literature review estimated that 17 percent of people with COVID-19 are actually asymptomatic. The first case of COVID-19 was reported Dec. 1, 2019, and the cause was a then-new coronavirus later named SARS-CoV-2. SARS-CoV-2 may have originated in an animal and changed so it could cause illness in humans. In the past, several infectious disease outbreaks have bee...