Thursday, April 15, 2021
Home Life Style Health & Fitness People May Get Protection from COVID if They Had Common Cold in...

People May Get Protection from COVID if They Had Common Cold in Past: Researchers

Seasonal Cold in Past May Help In antibodies' generation

In a big breakthrough, researchers have found that people who have had about the seasonal or common cold in the past may get protection from Covid-19.

The study, published in the journal mBio, also suggests that immunity to Covid-19 is likely to last a long time — maybe even a lifetime.

The study showed that the COVID-19-causing virus, SARS-CoV-2, induces memory B cells, long-lived immune cells that detect pathogens, create antibodies to destroy them, and remember them for the future.

Follow NewsGram on Quora Space to get answers to all your questions.

The next time that pathogen tries to enter the body, those memory B cells can hop into action even faster to clear the infection before it starts.

Because memory B cells can survive for decades, they could protect Covid-19 survivors from subsequent infections for a long time, but further research will have to bear that out, the researchers said.

The study is also the first to report cross-reactivity of memory B cells — meaning B cells that once attacked cold-causing coronaviruses appeared to also recognize SARS-CoV-2.

Study authors believe this could mean that anyone who has been infected by a common coronavirus — which is nearly everyone — may have some degree of pre-existing immunity to Covid-19.

“When we looked at blood samples from people who were recovering from Covid-19, it looked like many of them had a pre-existing pool of memory B cells that could recognize SARS-CoV-2 and rapidly produce antibodies that could attack it,” said lead study author Mark Sangster from the University of Rochester in the US.

Common Cold
Common Cold may give some degree of pre-existing immunity to Covid-19. Pixabay

The findings are based on a comparison of blood samples from 26 people who were recovering from mild to moderate Covid-19 and 21 healthy donors whose samples were collected six to 10 years ago — long before they could have been exposed to Covid-19.

From those samples, study authors measured levels of memory B cells and antibodies that target specific parts of the Spike protein, which exists in all coronaviruses and is crucial for helping the viruses infect cells.

The Spike protein looks and acts a little different in each coronavirus, but one of its components, the S2 subunit, stays pretty much the same across all of the viruses.

Memory B cells can’t tell the difference between the Spike S2 subunits of the different coronaviruses and attack indiscriminately.

Also Read: Airborne Transmission of Covid-19 Spreads More Quickly Indoors: Study

The study found that was true for beta coronaviruses, a subclass that includes two cold-causing viruses as well as SARS, MERS, and SARS-CoV-2.

“Now we need to see if having this pool of pre-existing memory B cells correlates with milder symptoms and shorter disease course — or if it helps boost the effectiveness of Covid-19 vaccines,” the authors wrote. (IANS)

STAY CONNECTED

19,517FansLike
362FollowersFollow
1,773FollowersFollow

Most Popular

Top 7 Laptops You Should Buy For Programming

By Ankit Sharma Laptops have become ubiquitous today, and everyone -- from school kids to young adults, and from working professionals to home-makers uses laptops...

Tips To Start A Healthy Lifestyle

By Martin William Health is one of the most important assets of life and shouldn’t be compromised for anything. Unfortunately, it's sad to see that...

Why Doesn’t The Leaning Tower Of Pisa Fall Over?

BY- JAYA CHOUDHARY In 1990, the Italian government enrolled top engineers to secure Pisa’s iconic Leaning Tower. Various attempts to right the tower had been...

A Few Fascinating Facts About The Sparkling Diamond

Diamonds have an unmatched beauty, their enigmatic energy, or simply a legacy thats billions of years old captivates people all over the world. April...

A Guide For New-Age Art Collectors

Given the current exposure, Indian art is receiving, the projected turnover for the market will hold its ground, and further expand over the next...

“AahaarKranti”, A Mission Dedicated To Spreading Awareness About Nutrition

To eradicate malnutrition from the country which persists even in the 21st century, a group of nearly a dozen key private as well as...

AUM Of India’s Pension Schemes Is Increasing As More People Flock In

India's state-run pension schemes bucked the Covid-19 induced downtrend as the pandemic triggered an upsurge in new enrolments and sustained contributions. Assets Under Management (AUM)...

UPI Remained Most Preferred Payment Mode In India: Report

Digital transactions processed at physical touchpoints such as grocery stores, fuel stations, clothing & apparel, pharmacies, restaurants, and specialty retail together accounted for 80...

Recent Comments