Coronavirus News Live: India records 13,216 new Covid-19 cases; daily positivity rate at 2.73%

A health worker administers a dose of Covid-19 vaccine to a beneficiary, at district hospital in Noida. (PTI)

Coronavirus News Live Updates: India recorded 13,216 new coronavirus cases and 23 deaths in the last 24 hours, according to data released by the Union Ministry of Health and Family Welfare. The number of active cases has risen to 68,108, while the daily positivity rate is 2.73%.

People infected with the earliest version of the Omicron variant of the coronavirus, first identified in South Africa in November, may be vulnerable to reinfection with later versions of Omicron even if they have been vaccinated and boosted, new findings suggest.

Vaccinated patients with Omicron BA.1 breakthrough infections developed antibodies that could neutralise that virus plus the original SARS-CoV-2 virus, but the Omicron sublineages circulating now have mutations that allow them to evade those antibodies, researchers from China reported on Friday in Nature. Adolfo Garcia-Sastre, a microbiology and infectious diseases researcher at the Icahn School of Medicine at Mount Sinai in New York City, suggested that better protection might be seen with vaccines that target multiple strains of the virus or with intranasal vaccines that would increase protection from infection and transmission by generating immunity in the lining of the nose, where the virus first enters.

Live Blog

Follow the latest updates here.

People infected with the earliest version of the Omicron variant of the coronavirus, first identified in South Africa in November, may be vulnerable to reinfection with later versions of Omicron even if they have been vaccinated and boosted, new findings suggest.

Vaccinated patients with Omicron BA.1 breakthrough infections developed antibodies that could neutralise that virus plus the original SARS-CoV-2 virus, but the Omicron sublineages circulating now have mutations that allow them to evade those antibodies, researchers from China reported on Friday in Nature.

Omicron BA.2.12.1, which is presently causing most infections in the United States, and Omicron BA.5 and BA.4, which now account for more than 21% of new US cases, contain mutations not present in the BA.1 and BA.2 versions of Omicron.

Those newer sublineages “notably evade the neutralising antibodies elicited by SARS-CoV-2 infection and vaccination,” the researchers found in test-tube experiments.

The monoclonal antibody drugs bebtelovimab from Eli Lilly and cilgavimab, a component of AstraZeneca’s Evusheld, can still effectively neutralise BA.2.12.1 and BA.4/BA.5, the experiments also showed.

But vaccine boosters based on the BA.1 virus, such as those in development by Pfizer/BioNTech and Moderna, “may not achieve broad-spectrum protection against new Omicron variants,” the researchers warned.

Read More

Leave a Reply

Your email address will not be published.

You May Also Like

As Washington ramps up efforts to bring India on board with sanctions against Russia, U.S. treasury official on visit to Mumbai and Delhi

U.S. Assistant Secretary to discuss Russian oil purchases by India, rupee-rouble trade…

Eid-ul-Fitr moon sighting highlights: Saudi Arabia, India may mark Eid same day

Eid-ul-Fitr 2022 moon sighting highlights: There is a wafer-thin chance that Muslims…

सड़क, रेल, 5G… अरुणाचल बॉर्डर से सटे तिब्‍बत में क्‍या-क्‍या गुल खिला रहा चीन, सेना ने सब बताया

Edited by दीपक वर्मा | भाषा | Updated: May 17, 2022, 1:08…

Russia-Ukraine Crisis: Indian crisis: People without Covid-19 negative reports and unvaccinated Indians can enter Delhi airport

The Delhi airport issued a revised advisory to Indian citizens on Saturday…