COVID-19: CDC says “less than half” of positive coronavirus antibody tests are accurate

The US Centers for Disease Control and Prevention states that antibody tests used to assess whether people have been contaminated with COVID-19 can be inaccurate in up to half the time. New guidelines Post on their website.

(Photo: Reuters / Brian Snyder)
Lawyer John Flow named him “Tennessee Red”, parked in a driveway in his home, and in a driveway in his home coronavirus disease (COVID-19) on May 26, 2020, in South Easton, Massachusetts, USA. Outbreak.

Antibody tests, also called serologic tests, seek evidence of an immune response to an infection. “Some people’s antibodies may be detected within a week of onset,” says CDC.

Also read: FDA approves two new coronavirus antibody tests: are these the answers?

they are Not accurate enough The CDC said it will be used to make important policy decisions.

“The serology results should not be used to make decisions about grouping people who live or reside in schools, dormitories, correctional facilities, etc.,” says the CDC.

The health agency has clarified that serology results should not be used to make decisions about returning to work.

Health authorities or health care professionals who use antibody tests use the tests they most trust The CDC said in a new guideline that it can find people and may need to test twice.

The health agency SARS-CoV-2 antibody Is expected to be relatively low, ranging from less than 5% to 25%, so tests at this point may have more false positive results and fewer false negative results.

Also read: [BREAKING] 18 New COVID-19 antibody discovered by the US Army. SARS antibody was also found

This is a frequent discussion by public health experts over the last few weeks, but the CDC points out the issue in its latest antibody testing advice.

false positive

False positives can make someone think they were contaminated when they were not. There is little evidence that an infection gives people immunity to a later infection. Still, doctors worry that if people get a positive test for antibodies, they may behave as if they were immune.

The new CDC guidelines are University of Minnesota And other organizations that warn against using antibody tests to make policy decisions.

The CDC explains why investigations can often be inaccurate. Much is involved in how the virus spreads in the population under study.

“For example, in a population with a prevalence of 5%, a test with 90% sensitivity and 95% specificity yields a 49% positive predictive value,” says CDC. Therefore, less than half of these positive tests will have antibodies.

On the other hand, the same test with a population with antibody prevalence greater than 52% will give a positive prediction greater than 95%. Therefore, less than 1 in 20 people who test positive will have a false-positive test result.

Therefore, as there are many cases in the population that doctors suspect, it is safer to use high-specificity tests that are less likely to cause many false positives, as the CDC states.

The Food and Drug Administration also effect Of antibody test.

Also read: COVID-19: False-negative coronavirus testing may be due to how the sample was collected, experts say

Ⓒ 2018 TECHTIMES.com All rights reserved. Please do not copy without permission.

..

What Are The Main Benefits Of Comparing Car Insurance Quotes Online

LOS ANGELES, CA / ACCESSWIRE / June 24, 2020, / Compare-autoinsurance.Org has launched a new blog post that presents the main benefits of comparing multiple car insurance quotes. For more info and free online quotes, please visit https://compare-autoinsurance.Org/the-advantages-of-comparing-prices-with-car-insurance-quotes-online/ The modern society has numerous technological advantages. One important advantage is the speed at which information is sent and received. With the help of the internet, the shopping habits of many persons have drastically changed. The car insurance industry hasn't remained untouched by these changes. On the internet, drivers can compare insurance prices and find out which sellers have the best offers. View photos The advantages of comparing online car insurance quotes are the following: Online quotes can be obtained from anywhere and at any time. Unlike physical insurance agencies, websites don't have a specific schedule and they are available at any time. Drivers that have busy working schedules, can compare quotes from anywhere and at any time, even at midnight. Multiple choices. Almost all insurance providers, no matter if they are well-known brands or just local insurers, have an online presence. Online quotes will allow policyholders the chance to discover multiple insurance companies and check their prices. Drivers are no longer required to get quotes from just a few known insurance companies. Also, local and regional insurers can provide lower insurance rates for the same services. Accurate insurance estimates. Online quotes can only be accurate if the customers provide accurate and real info about their car models and driving history. Lying about past driving incidents can make the price estimates to be lower, but when dealing with an insurance company lying to them is useless. Usually, insurance companies will do research about a potential customer before granting him coverage. Online quotes can be sorted easily. Although drivers are recommended to not choose a policy just based on its price, drivers can easily sort quotes by insurance price. Using brokerage websites will allow drivers to get quotes from multiple insurers, thus making the comparison faster and easier. For additional info, money-saving tips, and free car insurance quotes, visit https://compare-autoinsurance.Org/ Compare-autoinsurance.Org is an online provider of life, home, health, and auto insurance quotes. This website is unique because it does not simply stick to one kind of insurance provider, but brings the clients the best deals from many different online insurance carriers. In this way, clients have access to offers from multiple carriers all in one place: this website. On this site, customers have access to quotes for insurance plans from various agencies, such as local or nationwide agencies, brand names insurance companies, etc. "Online quotes can easily help drivers obtain better car insurance deals. All they have to do is to complete an online form with accurate and real info, then compare prices", said Russell Rabichev, Marketing Director of Internet Marketing Company. CONTACT: Company Name: Internet Marketing CompanyPerson for contact Name: Gurgu CPhone Number: (818) 359-3898Email: [email protected]: https://compare-autoinsurance.Org/ SOURCE: Compare-autoinsurance.Org View source version on accesswire.Com:https://www.Accesswire.Com/595055/What-Are-The-Main-Benefits-Of-Comparing-Car-Insurance-Quotes-Online View photos