May 23, 2026

Science Chronicle

A Science and Technology Blog

May 23, 2026

Science Chronicle

A Science and Technology Blog

omicron

CoronavirusCOVID-19omicronPublic HealthSARS-CoV-2

Variants do not always evolve to become less virulent

Since transmission begins before symptoms set in and the disease becomes severe, its characteristic is decoupled from disease

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Communicable diseaseCOVID-19omicronPublic HealthSARS-CoV-2

Why Omicron sub-lineage BA.2 spreads faster than BA.1 

A few studies are now discovering that BA.2 sub-lineage has even higher propensity than BA.1 to spread among people

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Communicable diseaseomicronPublic HealthSARS-CoV-2Testing

IGIB develops future-proof primers, kits for RT-PCR test for SARS-CoV-2

The pool of primers has been developed to target regions of the virus which are unlikely to undergo mutations

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COVID-19omicronPublic HealthSARS-CoV-2

Faster spread of Omicron is not due to higher viral load

Omicron has replaced the Delta variant, which was considered highly transmissible, in almost every country across the world

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Communicable diseaseCOVID-19omicronPublic HealthSARS-CoV-2

COVID-19: Even if mild, Omicron variant can overwhelming health-care settings

Huge percentage of the population in India got infected when the Delta variant raged through the country. Studies from other

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Communicable diseaseCOVID-19omicronPublic HealthSARS-CoV-2

COVID-19: India should prepare for the worst with Omicron

The World Health Organization said the number of COVID-19 cases recorded globally shot up by 11% last week (December 20-26)

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Communicable diseaseCoronavirusCOVID-19omicronPublic HealthSARS-CoV-2Testing

Is the current testing, sequencing strategy missing Omicron cases in India?

A November 30, 2021 circular from the health ministry clearly mentions that effective December 1, all passengers arriving from specified

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COVID-19omicronSARS-CoV-2

COVID-19: New Omicron sub-lineage may not further increase transmissibility

Now, based on genome sequence data, scientists have identified a sub-lineage — BA.2 — of Omicron. As a result, the

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CoronavirusCOVID-19omicronSARS-CoV-2

How the idea of COVID-19 vaccine protection changed in one year

On this day last year (December 11, 2020), Pfizer’s vaccine for COVID-19 was granted an emergency use authorisation, and exactly

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Clinical trialCoronavirusomicronSARS-CoV-2VaccinesWorld Health Organisation

Does the Omicron variant make a case for COVID-19 booster doses?

At a recent meeting, the National Technical Advisory Group on Immunisation maintained that it was not recommending a booster dose

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COVID-19deltaomicronSARS-CoV-2Vaccines

Groping in the dark on COVID-19 booster doses

Even when clamour from a few States for booster doses increased once the new variant with higher transmissibility causing a

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COVID-19omicronSARS-CoV-2

Criticised if delayed in sharing COVID-19 data, punished for diligently posting data

After the first infection by a new variant — it has 32 mutations in the spike protein alone — was

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