May 23, 2026

Science Chronicle

A Science and Technology Blog

May 23, 2026

Science Chronicle

A Science and Technology Blog

omicron

CoronavirusCOVID-19omicronWorld Health Organisation

Staying alert: On the rapidly increasing spread of the JN.1 variant

The rapidly increasing spread of the JN.1 variant across the globe has led to the prevalence of this variant, a descendent of

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Communicable diseaseCoronavirusomicronPublic HealthResearchSARS-CoV-2

Omicron variants evolve strategies to evade T cell immunity

The cellular mechanisms and consequences of enhanced MHC I inhibition by Omicron variants on infection and disease remain to be determined

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CoronavirusomicronPublic HealthSARS-CoV-2Testing

No cause for alarm: On the Omicron recombinant XBB.1.16 in India

More than three years after the pandemic began, newer variants, an uptick in cases, hospitalisations, and even deaths are being reported from

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Communicable diseaseCoronavirusCOVID-19omicronPublic HealthSARS-CoV-2

Why India has not witnessed any surge in COVID-19 cases for months

Daily COVID-19 cases in India are low despite the newer Omicron subvariants, recombinants possessing greater immune escape and transmissibility The

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Communicable diseaseCoronavirusCOVID-19omicronPublic HealthSARS-CoV-2

Is Omicron variant XBB.1.5’s superior binding causing higher transmissibility?

XBB.1.5 is the most transmissible variant that has been detected yet, and it has already spread to over 29 countries so far

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Communicable diseaseCoronavirusCOVID-19omicronPublic HealthSARS-CoV-2Vaccines

Sooner or later, India has to develop Omicron-based boosters

Vaccines based on Omicron variants are better than the ones based on the ancestral strain, but the older vaccines are still effective

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COVID-19omicronPublic HealthSARS-CoV-2Testing

What is causing a surge in COVID-19 cases in India?

In addition to BA.4 and BA.5, India and about half-a-dozen other countries have reported BA.2.75, which is a new sub-lineage of Omicron

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ImmunisationomicronPublic HealthSARS-CoV-2Vaccines

COVID-19 booster dose may not alter disease severity trend

A cross-sectional survey of nearly 6,000 people across age groups including those over 80 years of age carried out through

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COVID-19omicronResearchSARS-CoV-2

Why cats and dogs are less susceptible to Omicron

The progenitor of the Omicron variant might have emerged in mice and then spread to humans

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Communicable diseaseCOVID-19omicronPublic HealthSARS-CoV-2

Not mild for all: On community transmission of Omicron

India has admitted community transmission in the belief Omicron is mild Even at the peak of the second wave in

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Communicable diseaseomicronPublic HealthSARS-CoV-2

T cell immune responses seen a year after infection

Strong and longstanding T cell responses were seen even when people were not reinfected or vaccinated

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COVID-19omicronSARS-CoV-2

Recombination of two virus variants seen since 2020

The Alpha and Wuhan strain recombinant was the first; the latest is a mixture of two Omicron sub-lineages Mutations are

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Communicable diseaseCOVID-19deltaomicronPublic HealthSARS-CoV-2

Children more unlikely to produce antibodies against SARS-CoV-2 virus

Study comparing adults and children was done when Wuhan strain was in circulation; results may not hold true for Delta and Omicron

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