Asymptomatic virus sufferers lose antibodies sooner — study | Inquirer Technology
Close  

Asymptomatic virus sufferers lose antibodies sooner — study

/ 05:40 PM October 30, 2020
antibodies

Samples from people across England between mid-June and late September showed the prevalence of virus antibodies fell by more than a quarter. Image: IStock.com/Kameleon007 via AFP Relaxnews

Asymptomatic coronavirus sufferers appear to lose detectable antibodies sooner than people who have exhibited COVID-19 symptoms, according to one of the biggest studies of its kind in Britain published on Tuesday.

The findings by Imperial College London and market research firm Ipsos Mori also suggest the loss of antibodies was slower in 18- to 24-year-olds compared to those aged 75 and over.

ADVERTISEMENT

Overall, samples from hundreds of thousands of people across England between mid-June and late September showed the prevalence of virus antibodies fell by more than a quarter.

The research, commissioned by the British government and published Tuesday by Imperial, indicates people’s immune response to COVID-19 reduces over time following infection.

FEATURED STORIES

James Bethell, a junior health minister, called it “a critical piece of research, helping us to understand the nature of COVID-19 antibodies over time.”

But scientists involved cautioned that a great deal remains unknown about people’s long-term antibody response to the virus.

“It remains unclear what level of immunity antibodies provide, or for how long this immunity lasts,” said Paul Elliott, of Imperial’s School of Public Health.

The study involved 365,000 randomly-selected adults administering at home three rounds of finger-prick tests for coronavirus antibodies between June 20 and Sept. 28.

The results showed the number of people with antibodies fell by 26.5% over the approximate three-month period.

Scaled up to a nationwide level, it meant the proportion of the English population with antibodies dropped from 6.0% to 4.4%, according to the study.

The decline coincided with the prevalence of the virus falling dramatically across England — and the rest of Britain — following a months-long national shutdown which was eased over the summer.

ADVERTISEMENT

However, the research found the number of health care workers testing positive for antibodies did not change over time, potentially reflecting repeated, or higher initial, exposure to the virus.

“This very large study has shown that the proportion of people with detectable antibodies is falling over time,” said Helen Ward, one of the lead authors.

“We don’t yet know whether this will leave these people at risk of reinfection with the virus that causes COVID-19, but it is essential that everyone continues to follow guidance to reduce the risk to themselves and others.” RGA

RELATED STORIES:

Premature baby girl recovers from COVID-19

Obesity greatest risk factor for young adults with COVID-19 — study

For more news about the novel coronavirus click here.
What you need to know about Coronavirus.
For more information on COVID-19, call the DOH Hotline: (02) 86517800 local 1149/1150.

The Inquirer Foundation supports our healthcare frontliners and is still accepting cash donations to be deposited at Banco de Oro (BDO) current account #007960018860 or donate through PayMaya using this link .

TOPICS: antibodies, Britain, coronavirus, COVID-19, pandemic
Read Next
Don't miss out on the latest news and information.

Subscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.

For feedback, complaints, or inquiries, contact us.


© Copyright 1997-2020 INQUIRER.net | All Rights Reserved

We use cookies to ensure you get the best experience on our website. By continuing, you are agreeing to our use of cookies. To find out more, please click this link.