Friday, May 7, 2021
Home Life Style Health & Fitness Initial Covid Infection May Help Vaccine Fight New Variants: Study

Initial Covid Infection May Help Vaccine Fight New Variants: Study

In those without prior Covid-19, the immune response was less strong after a first dose, potentially leaving them at risk from variants

A single dose of  against Covid may boost immunity against the coronavirus variants, only in people who were previously infected with the deadly virus, a study has found, highlighting the importance of a second dose. In people who have not previously been infected and have so far only received one dose of vaccine, the immune response to variants of concern may be insufficient, said the team of researchers at Imperial College London, Queen Mary University of London, and University College London.

The study, published in the journal Science, looked at immune responses in UK healthcare workers at Barts and Royal Free hospitals following their first dose of the Pfizer/BioNTech vaccine. People who had previously had mild or asymptomatic infection had significantly enhanced protection against the UK and South Africa variants, after a single dose of the mRNA vaccine.

Follow NewsGram on LinkedIn to know what’s happening around the world.

In those without prior Covid-19, the immune response was less strong after a first dose, potentially leaving them at risk from variants. “Our findings show that people who have had their first dose of vaccine, and who have not previously been infected with SARS-CoV-2, are not fully protected against the circulating variants of concern,” said Rosemary Boyton, Professor of Immunology and Respiratory Medicine at Imperial College.

vaccine
Blood samples were analyzed for the presence and levels of immunity against the original strain of SARS-CoV-2, as well as the UK (B117) and South Africa (B1351) variants of concern. Pixabay

“This study highlights the importance of getting second doses of the vaccine rolled out to protect the population,” Boyton added. Blood samples were analyzed for the presence and levels of immunity against the original strain of SARS-CoV-2, as well as the UK (B117) and South Africa (B1351) variants of concern. Along with antibodies, the team also focused on two types of white blood cells: B-cells, which ‘remember’ the virus; and T cells, which help B cell memory and recognize and destroy cells infected with the coronavirus.

ALSO READ: Covid 19: Using Oxygen Cylinder Without Guidance Can Be Harmful

They found that after the first dose of the vaccine, prior infection was associated with a boosted T cell, B cell, and neutralizing antibody response, which could provide effective protection against SARS-CoV-2, as well as the UK and South Africa variants.

However, in people without previous SARS-CoV-2 infection, a single vaccine dose resulted in lower levels of neutralizing antibodies against SARS-CoV-2 and the variants, potentially leaving them vulnerable to infection and highlighting the importance of the second vaccine dose. (IANS/JC)

STAY CONNECTED

19,512FansLike
362FollowersFollow
1,773FollowersFollow

Most Popular

Black Fungal Infections Can Turn Dangerous If Left Untreated

Mucormycosis, also known as black fungus, can turn dangerous if left untreated, doctors said on Friday amid reports of re-emergence of the rare deadly...

How Fast Payout Casino Works

Online casino game sites use and accept different payment methods. The depositing process is simple and takes just a few seconds, but the online...

The Ancient Maya: History And Culture

By- Khushi Bisht Civilizations refer to a dynamic lifestyle that developed as humans started to build advanced and urban societies. From the Mesopotamians to the...

What’s Next In Podcast World 2021?

Let us take our chances and say that you are tempted to skip reading this entire article, apart from the key pointers. But imagine...

Fix Your Gummy Smile By These Treatment Options

Everyone tends to experience something they are self-conscious about. For some people, a gummy smile which is known as an excessive gingival display is...

Participate In Fitness Challenges And Win Some Great Prizes

As the pandemic continues to grip the country, it is becoming challenging for us to keep our spirits high. Fitness is no longer a...

Study: COVID Precautions Causing Dermatitis In Two-Thirds Of The Population

More than two-thirds of people may now have hand dermatitis due to stringent hand washing and using alcohol-based rubs during the Covid-19 pandemic, indicating...

Natural Herbs For Stress And Anxiety Relief

The ongoing Covid-19 pandemic has struck both people's mental health and physical health, with necessary protocols like social distancing and restricted mobility making the...

Recent Comments