Thursday, August 5, 2021
400 August

Education Punjab First 728

English Medium 728

Pre Primary 728

Farmers Compensation 728

Farmers Income 728

Pension 1500 gif

Shaheed 50 lakh gif

Kisan Karza 5.64 lakh gif

Kisan 48 hours gif

Ashirwad 51000 gif

Sohna Markfed

Innocent Admission

Pfizer, Moderna Covid shots generates lasting immunity: Study

- Advertisement -
New York, June 29, 2021 (Agency) Pfizer and Moderna vaccines, the first two jabs authorised for emergency use against Covid-19 by the US Food and Drug Administration (FDA), produce immune responses that are both strong and potentially long-lasting, finds a study.

While both vaccines performed well in clinical trials, and have been widely credited with reducing disease, concerns remained over how long immunity induced by the mRNA-based shots will last.

The study, led by researchers from the Washington University School of Medicine in St Louis showed that nearly four months after the first dose people who received the Pfizer vaccine still had so-called germinal centers in their lymph nodes churning out immune cells directed against SARS-CoV-2, the virus that causes Covid-19.

The team found that even three weeks after the first dose, all 14 participants had formed germinal centers with B cells producing antibodies that target a key SARS-CoV-2 protein. The response expanded greatly after the booster shot and then stayed high.

Even 15 weeks after the first dose, eight of 10 people still had detectable germinal centers containing B cells targeting the virus.

“Germinal centers are the key to a persistent, protective immune response,” said Ali Ellebedy, Associate Professor of pathology and immunology, of medicine and of molecular microbiology.

“Germinal centers are where our immune memories are formed. And the longer we have a germinal center, the stronger and more durable our immunity will be because there’s a fierce selection process happening there, and only the best immune cells survive,” Ellebedy added.

Moreover, vaccination led to high levels of neutralising antibodies effective against three variants of the virus, including the Beta variant from South Africa that has shown some resistance to vaccines.

Vaccination also induced stronger antibody responses in people who had recovered from SARS-CoV-2 infection compared to those who had never been infected. Among people without prior exposure to the virus, antibody levels rose slowly after the first dose and peaked one week after the second.

Both Pfizer and Moderna vaccines were created with mRNA technology. Unlike most vaccines, which provide bits of viral or bacterial proteins to trigger an immune response, mRNA-based vaccines provide instructions for the body to build and release foreign proteins, such as the spike protein in the case of the SARS-CoV-2 virus.

India seeks EU travel approval for Covishield: Report

Subscribe to YesPunjab Telegram Channel & receive important news updates

- Advertisement -

Yes Punjab - TOP STORIES

Punjab News

Sikh News

Transfers, Postings, Promotions

- Advertisement -spot_img

Stay Connected

20,369FansLike
111,984FollowersFollow

ENTERTAINMENT

National

GLOBAL

OPINION

Chinese Space Programme

The worrisome Chinese space programme – by Asad Mirza

Most countries around the world whether big or small, developed or developing, pursue a space programme of their own or in collaboration with advanced...
Himachal Landslide 25July21

Recurring Land Slides and Flood-damage in Hill States: Need for Long Term Solutions – by KK Kapila

The recent incidents of landslides, cloudburst, flooding and falling rocks in the hill states of Himachal Pradesh, Uttarakhand and Jammu & Kashmir resulting in...
Delhi Police Security

Effective policing is the foundation of internal security – by DC Pathak

An important lesson drawn by India from the ongoing pandemic is that strict crime control and maintenance of law and order are needed to...

SPORTS

Health & Fitness

Cream Skin

A Gel or a Cream? Which is better during Indian monsoon?

New Delhi, Aug 4, 2021- To prevent the skin from taking excessive damage from the heat and the humidity that Indian monsoons offer, you can resort to several herbal or Ayurvedic formulations in the form of gels or creams. However, the availability of these two options also leads to the tough question -- a gel or a cream --...

Gadgets & Tech

error: Content is protected !!