Odisha News, Odisha Latest news, Odisha Daily - OrissaPOST
  • Home
  • Trending
  • State
  • Metro
  • National
  • International
  • Business
  • Feature
  • Entertainment
  • Sports
  • More..
    • Odisha Special
    • Editorial
    • Opinion
    • Careers
    • Sci-Tech
    • Timeout
    • Horoscope
    • Today’s Pic
  • Video
  • Epaper
  • News in Odia
  • Home
  • Trending
  • State
  • Metro
  • National
  • International
  • Business
  • Feature
  • Entertainment
  • Sports
  • More..
    • Odisha Special
    • Editorial
    • Opinion
    • Careers
    • Sci-Tech
    • Timeout
    • Horoscope
    • Today’s Pic
  • Video
  • Epaper
  • News in Odia
No Result
View All Result
OrissaPOST - Odisha Latest news, English Daily -
No Result
View All Result

Beware! Rapid COVID-19 test’s accuracy may be lower than thought; read details

IANS
Updated: November 16th, 2020, 12:44 IST
in Coronavirus, Feature
0
Share on FacebookShare on TwitterShare on WhatsAppShare on Linkedin

London: After Tesla CEO Elon Musk raised questions over the efficacy of the rapid tests to spot COVID-19, new research has claimed that the accuracy of a rapid finger-prick antibody test for COVID-19 infection may be considerably lower than previously suggested.

The results, published in the journal The BMJ, suggest that if 10 people of people given the test had previously been infected, around one in five positive test results would be incorrect (false positive results).

Also Read

Man joins virtual court hearing from toilet, to cough up Rs 1 Lakh fine

1 day ago
Viral video

Watch viral video: Bride turns vidaai into action scene, send-off resembles crime thriller

1 day ago

“These conclusions contrast with an earlier (not yet peer reviewed) study suggesting that the test gives no false positive results,” said study authors from Imperial College London in the UK.

The findings suggest the test can deliver a sufficient degree of accuracy for surveillance studies of the population, but laboratory confirmation of positive results is likely to be needed if these tests are to be used to provide evidence of protection from the virus.

The AbC-19TM Rapid Test uses a drop of blood from a finger-prick to see if it’s likely that someone has previously been infected with SARS-CoV-2.

It gives results in 20 minutes, without the need to go to a laboratory, and is approved for use by health professionals in the UK and EU.

For the results, scientists tested blood samples in a laboratory from 2,847 key workers (healthcare, fire, and police staff) in England.

Of these, 268 had a previous PCR (positive polymerase-chain reaction) positive result so were ‘known positives’ while the remaining 2,579 had unknown previous infection status.

A further 1,995 pre-pandemic blood samples were also tested as ‘known negatives.’

Based on a series of analyses, the researchers estimated the specificity of the AbC-19 test (ability to correctly identify a true negative sample) to be 97.9 per cent, meaning that 2.1 per cent of people who did not have a previous SARS-Cov-2 infection incorrectly tested positive.

They estimated the sensitivity of the AbC-19 test to be 92.5 per cent based on PCR confirmed cases but considerably lower (84.7 per cent) in people with unknown previous infection status prior to antibody testing.

This difference is probably due to the test being more sensitive when antibody levels are higher, the researchers explained .

As people with a positive PCR result tended to have more severe disease, it is likely that they would have produced more antibodies.

The researchers said that the lower figure of 84.7 per cent is probably a more realistic estimate of test sensitivity in the real world, if people were to choose to take the test to find out their own previous infection status.

“This means that 15.3 per cent of people with a previous SARS-CoV-2 infection would be missed,” the authors noted.

On November 13, Musk tweeted: “Something extremely bogus is going on. Was tested for covid four times today. Two tests came back negative, two came back positive.

“Same machine, same test, same nurse. Rapid antigen test from BD.”

IANS

Tags: AntigenCoronaviruscovid19rapid testing
ShareTweetSendShare
Suggest A Correction

Enter your email to get our daily news in your inbox.

 

OrissaPOST epaper Sunday POST OrissaPOST epaper

Click Here: Plastic Free Odisha

?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
#MyPaperBagChallenge

Dibya Ranjan Das

December 12, 2019
#MyPaperBagChallenge

Keshab Chandra Rout

December 12, 2019
#MyPaperBagChallenge

Subhajyoti Mohanty

December 12, 2019
#MyPaperBagChallenge

Spinoj Pattnaik

December 12, 2019
#MyPaperBagChallenge

Jhili Jena

December 12, 2019
#MyPaperBagChallenge

Debasis Mohanty

December 12, 2019
#MyPaperBagChallenge

Pragyan Priyambada

December 12, 2019
#MyPaperBagChallenge

Diptiranjan Biswal

December 12, 2019
#MyPaperBagChallenge

Priyasha Pradhan

December 12, 2019
#MyPaperBagChallenge

Sibarama Khotei

December 12, 2019
#MyPaperBagChallenge

Akriti Negi

December 12, 2019
#MyPaperBagChallenge

Saishree Satyarupa

December 12, 2019
#MyPaperBagChallenge

Mrutyunjaya Behera

December 12, 2019
#MyPaperBagChallenge

Arya Ayushman

December 12, 2019
#MyPaperBagChallenge

Kamana Singh

December 12, 2019
#MyPaperBagChallenge

Pratik Kumar

December 12, 2019
#MyPaperBagChallenge

Anasuya Sahoo

December 12, 2019
#MyPaperBagChallenge

Smitarani Sahoo

December 12, 2019
#MyPaperBagChallenge

Adweeti Bhattacharya

December 12, 2019
#MyPaperBagChallenge

Adyasha Priyadarsani Sendha

December 12, 2019
#MyPaperBagChallenge

Parbati Mohanty

December 12, 2019
#MyPaperBagChallenge

Faiza Firdous

December 12, 2019
#MyPaperBagChallenge

Vandana Singh

December 12, 2019
#MyPaperBagChallenge

Pratyasharani Ghibela

December 12, 2019
#MyPaperBagChallenge

Rajashree Manasa Mohanty

December 12, 2019
#MyPaperBagChallenge

Archit Mohapatra

December 12, 2019
#MyPaperBagChallenge

Pratik Kumar Ghibela

December 12, 2019
#MyPaperBagChallenge

Priyabrata Mohanty

December 12, 2019
#MyPaperBagChallenge

Manas Samanta

December 12, 2019
#MyPaperBagChallenge

Sarfraz Ahmad

December 12, 2019

Archives

Editorial

Use & Abuse

Courtesy: Tech Crunch
July 16, 2025

Freedom of speech and expression is the soul of democracy and to rob an individual of that fundamental right is...

Read more

Trump Targets BRICS

July 15, 2025

US President Donald Trump is opening new theatres of his global tariff war. This appears to be a strategy he...

Read more

ECI & Aadhaar

Election Commission of India
July 14, 2025

Many of the acts of omission and commission by the Election Commission of India (ECI) in the recent past have...

Read more

Socialist Democrat

Aakar Patel
July 13, 2025

One of the most remarkable democratic developments of recent times came from New York City this month. A 33-year-old man...

Read more
  • Home
  • State
  • Metro
  • National
  • International
  • Business
  • Editorial
  • Opinion
  • Sports
  • About Us
  • Advertise
  • Contact Us
  • Jobs
Developed By Ratna Technology

© 2024 All rights Reserved by OrissaPOST

  • News in Odia
  • Orissa POST Epaper
  • Video
  • Home
  • Trending
  • Metro
  • State
  • Odisha Special
  • National
  • International
  • Sports
  • Business
  • Editorial
  • Entertainment
  • Horoscope
  • Careers
  • Feature
  • Today’s Pic
  • Opinion
  • Sci-Tech
  • About Us
  • Contact Us
  • Jobs

© 2024 All rights Reserved by OrissaPOST

    • News in Odia
    • Orissa POST Epaper
    • Video
    • Home
    • Trending
    • Metro
    • State
    • Odisha Special
    • National
    • International
    • Sports
    • Business
    • Editorial
    • Entertainment
    • Horoscope
    • Careers
    • Feature
    • Today’s Pic
    • Opinion
    • Sci-Tech
    • About Us
    • Contact Us
    • Jobs

    © 2024 All rights Reserved by OrissaPOST