Coronaviruses cause 20% of common colds.
Did you know that testing positive for Covid19 could simply mean you have the common cold?
Now take a look again at the "number of cases"..
Did you know that testing positive for Covid19 could simply mean you have the common cold?
Now take a look again at the "number of cases"..
"No test is ever perfect. All tests occasionally result in false positive results"..also note the use of the word "likely" throughout.
"Viral tests are used to diagnose COVID-19. These tests tell you if you currently have an infection with the virus that causes COVID-19" [could be any coronavirus?]
https://www.cdc.gov/coronavirus/2019-ncov/faq.html#Symptoms-&-Emergency-Warning-Signs
https://www.cdc.gov/coronavirus/2019-ncov/faq.html#Symptoms-&-Emergency-Warning-Signs
This screenshot is from the testing for antibodies page:
https://www.cdc.gov/coronavirus/2019-ncov/testing/serology-overview.html
https://www.cdc.gov/coronavirus/2019-ncov/testing/serology-overview.html