Tuesday, January 19, 2021
Philly News For Your Information


Asymptomatic coronaagvirus sufferers lose antibodies sooner: study

By PhillyNews.FYI , in News , at October 26, 2020 Tags: , , , , ,


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 18–24 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.

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.

ADVERTISEMENT

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

The results showed the number of people with antibodies fell by 26.5 percent 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 percent to 4.4 percent, according to the study.

ADVERTISEMENT

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.

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.

ADVERTISEMENT

“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.”

Enjoy good journalism?

… then let us make a small request. The COVID crisis has slashed advertising rates, and we need your help. Like you, we here at Raw Story believe in the power of progressive journalism. Raw Story readers power David Cay Johnston’s DCReport, which we’ve expanded to keep watch in Washington. We’ve exposed billionaire tax evasion and uncovered White House efforts to poison our water. We’ve revealed financial scams that prey on veterans, and legal efforts to harm workers exploited by abusive bosses. And unlike other news outlets, we’ve decided to make our original content free. But we need your support to do what we do.

Raw Story is independent. Unhinged from corporate overlords, we fight to ensure no one is forgotten.

We need your support in this difficult time. Every reader contribution, whatever the amount, makes a tremendous difference. Invest with us. Make a one-time contribution to Raw Story Investigates, or click here to become a subscriber. Thank you. Click to donate by check.

Value Raw Story?

… then let us make a small request. The COVID crisis has cut advertising rates in half, and we need your help. Like you, we believe in the power of progressive journalism — and we’re investing in investigative reporting as other publications give it the ax. Raw Story readers power David Cay Johnston’s DCReport, which we’ve expanded to keep watch in Washington. We’ve exposed billionaire tax evasion and uncovered White House efforts to poison our water. We’ve revealed financial scams that prey on veterans, and efforts to harm workers exploited by abusive bosses. We need your support to do what we do.

Raw Story is independent. You won’t find mainstream media bias here. Every reader contribution, whatever the amount, makes a tremendous difference. Invest with us in the future. Make a one-time contribution to Raw Story Investigates, or click here to become a subscriber. Thank you.

Report typos and corrections to: [email protected].

Comments


Leave a Reply