If you are asymptomatic, this COVID test could fail you
The research found that this type of test can give inaccurate results if you have no symptoms.
The country looks a lot different now than when the pandemic has been affected,Although case numbers are higher than ever. With the pandemic showing no signs of slowing down, people rely on coronavirus tests toDetermine if they can see the family and friends Or go out in big crowds. And many have become dependent on fast Covid tests, designed to give results in minutes rather than days. However, this COVID test may not be as accurate for everyone. In fact, a new study found that a rapid COVID test may not give you correct results if you are asymptomatic. Read the truth about the accuracy of fast tests and for more information on the future of coronavirus,These 5 people will receive the Covid vaccine first, Dr. Fauci says.
A rapid Covid test failed more than two-thirds of positive asymptomatic cases.
Researchers at Arizona University led a study onFast antigen test manufactured by Quidel, as previously indicated this month byThe New York Times. Whentest asymptomatic patients or people who did not feel sick, the test turned away from 32% of the positive cases reported by a PCR test based on the laboratory.
In the study, researchers tested about 2,500 people from June to August. For the 1,551 people selected at random without symptoms, 19 positive tested with PCR tests. However, the quick test took only six of these cases. And for more information on Covid Spread,It's when someone is most likely to give you Covid, study programs.
But the quick test has correctly identified more than 80% of the positive symptomatic cases.
Unlike asymptomatic cases, this rapid Covid test could detect more than 80% of coronavirus infections reported by the PCR test. Of the 885 people who had lived symptoms of Covid or have been exposed to the virus, 305 positive tested with the PCR test. The quick test caught 251 thereof, 16% missing.
"Symptomatic group data is decent"Jennifer dien Bard Bard, PhD, the director of theLaboratory of Microbiology and Clinical Virology At the Children's Hospital, Los Angeles, who was not involved in the study, saidThe New York Times. "But for less than 50% in the asymptomatic group? It's worse than returning a coin." And so that the symptoms of coronaviruses be on the lookout for,These 4 easy failing symptoms could mean that you have COVID, say experts.
This may be because fast tests are not necessarily for asymptomatic patients.
According toThe New York Times, American food and drugs (FDA) allows only theUse of Quidel tests for people with symptomsBut the use of fast tests for asymptomatic people has been "strongly encouraged by the federal government". Even the disease control and prevention centers (CDC) prevents the public againstUsing a negative result of a fast covidation test as their only source of judgment. The CDC says that there is still only "limited data to guide the use of rapid antigen tests such as screening tests on asymptomatic people to detect or exclude COVID-19 or determine if a previously confirmed case is always infectious. " And for more information on the limitations of this form of test, discoverWhat the White House Epidemic has taught us about fast Covid tests.
Researchers also believe that these results may mean that asymptomatic patients are not so infectious.
David Harris, PhD, aStem cell researcher And an author of the study, stated that antigen tests could have missed some asymptomatic patients because they wore too little virus to spread to someone else. The CDC states that fast antigen tests "detect the presence of a specific viral antigen", which means if they can not detect enough coronavirus material to give a positive result, there may not be enough of viral load to infect others.
According to Harris, the researchers have not been able to develop the coronavirus living from the volunteer samples that have had. The values above 27. and the asymptomatic patients missed by the test of Quidel, 12 had neck. values in the 30s. "If I do not have live viruses, I'm not at all infectious," Harris explained toThe New York Times. And for more information up to date,Sign up for our daily newsletter.
But other experts say that there is still not enough research to determine the infectivity of asymptomatic people.
Failed, Doctorate, theAssociate Director of Clinical Microbiology In the UCLA health system, which has not been involved in the study, saidThe New York TimesThat there is no evidence that does not push the coronavirus of a person's sample means that they are not contagious. And other experts noted that Arizona University did not follow the transmission of participants' coronavirus, so they can not draw conclusions about the spread of the virus.
In any case, people should not rely on fast antigen tests in terms of negative results.Susan Butler-Wu, PhD, aClinical microbiologist At the University of Southern California, which was not involved in the study, saidThe New York Times People, especially those with known coronavirus exhibition, should always get more accurate and more reliable PCR tests. And if you are afraid to get sick,This is the easiest way to say if you have been exposed to Covid.
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