People with both doses of Covishield have higher immunity against Delta variant ICMR study suggests

New Delhi: A study published by ICMR and National Institute of Virology, Pune shows that people with both doses of Covishield vaccine have higher immunity against the Delta variant of the coronavirus.

It also said that COVID-19 recovered individuals who were administered Covishield had higher neutralizing responses against the Delta variant.

“The study demonstrated that the breakthrough cases and the COVID-19 recovered individuals with one or two doses of Covishield vaccine had relatively higher neutralizing responses against the Delta variant in comparison to the participants who were administered either one or two doses of Covishield,” it said.

A comparative assessment of Covishield vaccinated individuals were conducted and sera under this study were grouped into five categories: People who took one dose, those who were administered two doses, COVID-19 recovered people who got one dose, COVID-19 recovered individuals who received two doses and breakthrough COVID-19 cases.

An increase in NAb titers was observed for both B.1 and Delta variants in the sera of the participants who had completed two vaccine doses relative to one dose.

Neutralizing antibody titers against B.1 and Delta variants were highest among breakthrough participants which may be due to spike-specific T-cell responses.

A titer is a test that measures the presence and amount of antibodies in the blood.

The study found that significantly lower NAb titers were observed for the Delta relative to B.1 variant. However, NAbs in breakthrough participants and the COVID-19 recovered individuals with one or two-dose vaccination had relatively higher protection against Delta in comparison to the vaccines with one or two-dose vaccination.

Long-term follow-up of participants could help to understand the impact of natural infection and vaccination on long-term protection from SARS-CoV-2 offered by Covishield.

It is important to track the breakthrough infections for immune escape mutants, the report said.

Medically Speaking Team

Recent Posts

Harness the Power of Rice Water

Rice water, rich in inositol, antioxidants, vitamins, and minerals, protects hair from sunlight damage and…

10 hours ago

“8 Powerful Herbs and Supplements to Beat Bloating and Boost Your Gut Health Naturally”

Natural Remedies for Bloating: 8 Herbs and Supplements That Work Wonders for Your Gut Health…

10 hours ago

“Unlock the Power of Oil Pulling: Discover How This Simple Practice Improves Oral Health and Freshens Your Breath”

Benefits of Oil Pulling: Stops Bad Breath, Keeps Gums Healthy, But Can't Replace Brushing Oil…

10 hours ago

WHY DO YOU EXPERIENCE RUNNY NOSE AFTER EATING SPICY FOOD?

Spicy food – whether it’s a dash of chili in your curry, a spoonful of…

10 hours ago

“4 Simple Tests to Spot Adulterated Wheat Flour: Protect Your Health with These Easy Checks”

How To Identify Adulterated Wheat Flour? Try These 4 Easy Tests Wheat flour is a…

11 hours ago

“Unlock the Power of Jaggery: 10 Surprising Health Benefits of Eating It After Every Meal”

Reasons That Will Make You Eat Jaggery After Every Meal (Potential Health Benefits Inside) Jaggery,…

11 hours ago