May 2, 2026

Science Chronicle

A Science and Technology Blog

May 2, 2026

Science Chronicle

A Science and Technology Blog

Vaccines

CancerCervical cancerVaccines

Serum’s HPV vaccine non-inferior to Gardasil

A phase-2/3 trial of Serum Institute of India’s human papillomavirus (HPV) vaccine Cervavac conducted at 12 tertiary care hospitals across

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Clinical trialCommunicable diseaseResearchVaccines

India-made typhoid vaccine efficacy lasts for four years

The efficacy of the conjugated typhoid vaccine at the end of 4.3 years of median follow-up was 70·6% for children

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Communicable diseaseImmunisationPublic HealthTuberculosis (TB)Vaccines

TB prevention: BCG revaccination study in high-risk adults to begin in 23 States

Since the government felt that a trial would take too long to complete and wanted to implement BCG revaccination at

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Communicable diseasePublic HealthPublic health policyVaccines

U.S. data underscore benefits of chickenpox vaccination

Twenty-five years of data (1995-2019) from the U.S. show a sharp drop in the incidence of chickenpox and shingles in

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Communicable diseaseMalariaPublic HealthVaccines

Now a more efficacious, inexpensive malaria vaccine

The R21/MatrixM malaria vaccine developed by the University of Oxford, manufactured by the Serum Institute of India, has been recommended

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Communicable diseaseHealthPublic HealthVaccines

FDA approves first vaccine for respiratory syncytial virus

On May 3, FDA approved the first vaccine — Arexvy — for respiratory syncytial virus (RSV) to lower respiratory tract disease in people older than 60 years

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Clinical trialResearchVaccines

No neutralising antibodies found after Japanese encephalitis vaccination

A small trial in vaccinated children in Gorakhpur district has found seroprotection against the virus decreased sharply in fully vaccinated children

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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-19SARS-CoV-2Vaccines

More vaccine choices: On Bharat Biotech’s intranasal COVID-19 vaccine

Nearly three months after Bharat Biotech’s intranasal COVID-19 vaccine was granted emergency use approval for primary vaccination of adults, the vaccine has now

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Communicable diseaseImmunisationMeaslesPublic HealthVaccines

Mumbai measles outbreak due to low vaccination coverage

Evidence from elsewhere suggests that unvaccinated children have nearly 70% higher mortality risk compared with vaccinated children

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Clinical trialCommunicable diseaseEbolaPublic HealthVaccines

Vaccine trial soon amid fear of Ebola virus spread to other countries

Currently there are no vaccines available for the Sudan strain of the Ebola virus

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Public HealthPublic health policySARS-CoV-2Vaccines

Corbevax booster should be a vaccine of choice

Due to faulty clinical trial design, the superiority of Corbevax heterologous booster over homologous boosters is not known On January

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Communicable diseaseCOVID-19Public HealthSARS-CoV-2Vaccines

In haste: On vaccinating children against COVID-19

India could have waited for evidence of benefit of vaccinating all children The emergency use authorisation (EUA) granted on April 26

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