WASHINGTON, April 7 (Xinhua) -- U.S. House of Representatives Speaker Nancy Pelosi has tested positive for COVID-19 and will quarantine, an aide announced on Thursday. "After testing negative this week, Speaker Pelosi received a positive test result for COVID-19 and is currently asymptomatic,...
The danger is due to false positive test results. False positives are likely in populations that have a low prevalence of disease unless the test has almost perfect specificity approaching 100%. The reliability of a positive test result is indicated by its “predictive value”, which is calculate...
1 (Xinhua) -- Portuguese Prime Minister Antonio Costa has tested positive for COVID-19, his cabinet said Tuesday. "The Prime Minister carried out a routine COVID-19 self-test today, having a positive result. This result has already been confirmed by an antigen test," the cabinet said in...
No. The new law in California that went into effect on September 19, 2020, requires an employer to report a positive COVID-19 test to their workers’ compensation carrier within three business days from when the employer knows or reasonably should have known that an employee has...
I was tested and I got a positive result for Covid-19.我再给你两个例子：In other words, ...
People in England who test positive for covid-19 on a lateral flow test will soon no longer need to have a polymerase chain reaction (PCR) test to confirm the result and should immediately self-isolate, the government has announced. The temporary suspension of the confirmatory testing, which ...
World-first research by Monash University in Australia has been able to detect positive COVID-19 cases using blood samples in about 20 minutes, and identify whether someone has contracted the virus.
and it depends on two factors: the prevalence of the virus in the general population and the specificity of the test, that is the percentage of people without disease in whom the test is correctly “negative” (a test with a specificity of 95% incorrectly gives a positive result in 5 out...
A two-week quarantine also makes people reluctant to get tested for Covid-19 because a positive result could put them out of work, White House coronavirus advisor Dr. Anthony Fauci told ABC News' "Good Morning America" on Wednesday.
On Aug. 14, Huang, a member of the Li ethnic group who lives in the coastal city of Sanya, developed a cough, fever and muscle soreness, and she returned a positive result for a COVID-19 nucleic acid test. Confirmed as a mild case, she was transferred to the Haikou People's Hospita...