United Front Intl
No Result
View All Result
Tuesday, February 7, 2023
  • Login
  • Register
  • Home
  • US
  • World
  • Politics
  • Coronavirus
  • Videos
  • Be in the Know
  • ShopNew
Contact us
United Front Intl
  • Home
  • US
  • World
  • Politics
  • Coronavirus
  • Videos
  • Be in the Know
  • ShopNew

No products in the cart.

No Result
View All Result
United Front Intl
No Result
View All Result
Home Coronavirus

Covid-resistant people inspire new vaccine tactic

Understanding how some people naturally resist Covid infection, despite clearly being exposed to the virus, could lead to better vaccines, say researchers.

by admin
November 10, 2021
in Coronavirus
Covid-resistant people inspire new vaccine tactic

Learning how to fight one virus may leave protection against another GETTY IMAGES

Share on FacebookShare on Twitter

BBC News
By James Gallagher

A team at University College London said some people had a degree of Covid-immunity before the pandemic started.

This likely came from the body learning how to fight viruses that are related to the one which has swept the world.

Upgrading vaccines to copy this protection, could make the jabs even more effective, the team said.

The scientists were closely monitoring hospital staff during the first wave of the pandemic – including by taking regular blood samples.

Despite being in a high-risk environment, not everyone in the study came down with Covid. The results, published in the journal Nature, showed some people just managed to avoid the virus.

But around one-in-10 had signs of being exposed, but never had symptoms, never tested positive and never developed Covid-fighting antibodies in their blood.

Part of their immune system was able to get on top of the virus before it managed to take hold – what’s known as an “abortive infection”.

Blood samples showed these people already had (as in before the pandemic) protective T-cells, which recognise and kill cells infected with Covid.

Dr Leo Swadling, one of the researchers, said their immune systems were already “poised” to fight the new disease.

These T-cells were able to spot a different part of the virus than the bit most of the current vaccines train the immune system to find.

Vaccines are largely aimed at the spike protein, which covers the outer surface of the Covid virus. However, these rare T-cells were able to look inside the virus and find the proteins that are necessary for it to replicate.

“The healthcare workers that were able to control the virus before it was detectable were more likely to have these T-cells that recognise the internal machinery before the start of the pandemic,” Dr Swadling added.

These internal proteins are very similar in all related species of coronavirus, including the ones that are widespread and cause common cold symptoms.

It means targeting these proteins with a vaccine could give some protection against all coronaviruses and new Covid variants.

The team said the current vaccines were doing an excellent job of preventing people from becoming severely ill, but were not as good at stopping them catching Covid.

Prof Mala Maini told me: “I think we could all see that they could do better.

“What we’re hoping, by including these T-cells, is that they might be able to protect against infection as well as disease, and we hope they would be better at recognising new variants that arise.”

While nearly everyone will have caught these common cold coronaviruses, not everyone will have developed the right kind of protective T-cells. It may be that healthcare workers are more regularly exposed to the viruses through their work and that is why some of them had protection.

Dr Alexander Edwards, from the University of Reading, said: “Insights from this study could be critical in the design of a different type of vaccine.

“Hopefully this study will lead to further advances in vaccine development, as we need all the types of vaccine we can get.”

Related

ShareTweetSendSend

Related Posts

What is known about new Covid variant XBB.1.5?
Coronavirus

What is known about new Covid variant XBB.1.5?

January 17, 2023
Explainer: COVID, flu and RSV this U.S. winter: Why experts are worried
Coronavirus

Explainer: COVID, flu and RSV this U.S. winter: Why experts are worried

October 27, 2022
Moderna seeks to be 1st with COVID shots for littlest kids
Coronavirus

Moderna seeks to be 1st with COVID shots for littlest kids

April 28, 2022
The Biden administration says it may appeal a ruling that voided a mask mandate on public transport.
Coronavirus

The Biden administration says it may appeal a ruling that voided a mask mandate on public transport.

April 19, 2022
Ivermectin Does Not Reduce Risk of Covid Hospitalization, Large Study Finds
Coronavirus

Ivermectin Does Not Reduce Risk of Covid Hospitalization, Large Study Finds

March 30, 2022
U.S. authorizes second COVID booster for Americans 50 and older
Coronavirus

U.S. authorizes second COVID booster for Americans 50 and older

March 29, 2022

My Cart

No Content Available

Categories

  • Be in the Know
  • Coronavirus
  • Politics
  • US
  • Videos
  • World

UnitedFrontIntl Store

My Account & Ordering
Cart
Checkout
Track My Order
Refund and Returns Policy
Privacy Policy
FAQs

Site Navigation

  • Home
  • Advertise
  • Contact Us
  • Jobs
  • About Us
  • Shipping Policy

Links

CNBC
Reuters

The New York Times
The Washington Post


Your tax-deductible gift is vital and will help us fund and maintain our website to bring you current news and information on a daily basis. Thank you in advance.

© 2022 United Front Intl

No Result
View All Result
  • Home
  • US
  • World
  • Politics
  • Coronavirus
  • Videos
  • Be in the Know
  • Contact Us
  • Advertisement
  • Shop

© 2022 United Front Intl

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms below to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In