April 2, 2026

Science Chronicle

A Science and Technology Blog

April 2, 2026

Science Chronicle

A Science and Technology Blog

SARS-CoV-2

CoronavirusCOVID-19SARS-CoV-2Testing

COVID-19: Waving testing requirement for the fully vaccinated is an ill-considered decision: Giridhara Babu

In an email, Dr. Giridhara Babu, Epidemiologist at the Public Health Foundation of India, Bengaluru explains why doing away with

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CoronavirusCOVID-19SARS-CoV-2

New COVID-19 cases and deaths rising again globally

It reached the low point on June 21 when only over 0.3 million cases were reported. But there has been

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CoronavirusCOVID-19SARS-CoV-2

Can some States serve as a bellwether for COVID-19 third wave in India?

Considering that Kerala and Maharashtra have shown high integrity in testing and reporting cases, should a sustained spike in daily

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CoronavirusCOVID-19SARS-CoV-2

Do excess deaths in four States suggest COVID-19 mortality has crossed one million in India?

Against a daily tally of over 4,000 deaths in May this year, The Economist estimated between 6,000 and 31,000 excess

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CoronavirusCOVID-19SARS-CoV-2Vaccines

Full vaccination with AstraZeneca offers 92% protection against COVID-19 hospitalisation with delta variant

In the case of AstraZeneca, effectiveness against hospitalisation after full vaccination was 92%, while it was 96% in the case

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CoronavirusCOVID-19SARS-CoV-2

Even as SARS-CoV-2 lab leak hypothesis is based on conjectures, it needs to be investigated

Much like other viruses, SARS-CoV-2 too could have a natural origin after it jumped from animals to humans or could

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CoronavirusCOVID-19SARS-CoV-2Vaccines

Amidst shortage, allotting 25% of COVID-19 vaccines produced to private hospitals will aggravate vaccine inequity

In an email, Dr. Gagandeep Kang, Professor of Microbiology at CMC Vellore and Dr. Chandrakant Lahariya, physician-epidemiologist and a vaccines

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CoronavirusCOVID-19ImmunisationSARS-CoV-2Vaccines

Two vaccine doses offer 77% protection against hospitalisation, CMC Vellore study finds

The study has been published in the journal Mayo Clinic Proceedings. “Our study shows that COVID-19 vaccines have a great

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CoronavirusCOVID-19deltaSARS-CoV-2Vaccines

Covaxin offers protection against beta and delta variants, says study

The study evaluated the neutralisation potential in people vaccinated with Covaxin and found that there was a 3- and 2.7-fold

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CoronavirusCOVID-19SARS-CoV-2Vaccines

Study finds Covishield produces more antibodies than Covaxin, but scientists point out serious flaws with the preprint

The seropositivity rates and the median antibody titre against spike protein was “significantly higher” in those vaccinated with Covishield compared

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CoronavirusCOVID-19SARS-CoV-2

‘We need to stay prepared for multiple waves and variants’

With the alpha (B.1.1.7) and delta (B.1.617.2) variants widely present across the country, and the possibility of new variants with

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CoronavirusCOVID-19SARS-CoV-2Vaccines

I would be reluctant to change Covishield dose interval at a time when we still have intense transmission: Gagandeep Kang

After approving Covishield vaccination with a four-six-week interval between two doses despite evidence showing higher protection when the gap was

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CoronavirusCOVID-19ImmunisationSARS-CoV-2Vaccines

COVID-19: Government passes off factually incorrect vaccination information as ‘fact’

According to the PIB release, the myth was that the Centre wasn’t taking any step to vaccinate children. Clarifying this,

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