April 1, 2026

Science Chronicle

A Science and Technology Blog

April 1, 2026

Science Chronicle

A Science and Technology Blog

SARS-CoV-2

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

Read More
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

Read More
COVID-19Human challenge studiesResearchSARS-CoV-2

Human challenge study finds high viral shedding in asymptomatic people

The study first detected the virus in the throat and the nose two days before peak symptoms showed up

Read More
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

Read More
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

Read More
Communicable diseaseCOVID-19Public HealthSARS-CoV-2Testing

COVID-19: The revised testing strategy of the ICMR

The story so far: With the highly transmissive Omicron variant now recorded in most States, and given the mild symptoms seen

Read More
Clinical trialCommunicable diseaseCOVID-19Public HealthSARS-CoV-2Vaccines

COVID-19: Covaxin booster increases neutralising antibodies, study finds

The control arm of the study had 93 participants and the intervention arm had 91 participants, but most of these people were under 55 years

Read More
Communicable diseaseCOVID-19Public HealthSARS-CoV-2Vaccines

COVID-19: Booster doses only mitigate disease severity, do not fully prevent infection

Though 90.8 million people above 60 years, 9.7 million health-care workers and nearly 17 million frontline workers have received the

Read More
COVID-19Public HealthSARS-CoV-2

Conflicting signals from drug regulator, COVID-19 national task force

“Considering the emergency and unmet medical need in Covid-19, the SEC on December 27 recommended for grant of permission to

Read More
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

Read More
Communicable diseaseCOVID-19ImmunisationPublic HealthSARS-CoV-2Vaccines

COVID-19: India widens the vaccine safety net by immunising teenagers above 15 years

With all adults aged 18 years and above already being covered, the inclusion of teenagers has reduced the eligibility age

Read More
Communicable diseaseCOVID-19Hybrid immunityImmunisationPublic HealthSARS-CoV-2Vaccines

COVID-19: The basis on which India approved precaution dose remains unclear

He said the primary focus of the government was on giving a second dose of the vaccine to make people

Read More
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)

Read More