May 9, 2026

Science Chronicle

A Science and Technology Blog

May 9, 2026

Science Chronicle

A Science and Technology Blog

World Health Organisation

Aerosol transmissionCoronavirusCOVID-19MaskPublic HealthSARS-CoV-2World Health Organisation

How wearing masks cut coronavirus transmission to 139 clients in a salon

  Vigilant mask wearing by two hair stylists working at a salon in Springfield, Missouri in the U.S. and all

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CoronavirusCOVID-19Public HealthSARS-CoV-2TestingWorld Health Organisation

Finally, Tamil Nadu to resume contact tracing with earnestness

  Aggressive testing since mid-June in hotspot areas in Chennai and the 12-day lockdown that went into effect from June

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Clinical trialCoronavirusCOVID-19Public HealthSARS-CoV-2VaccinesWorld Health Organisation

Results of coronavirus vaccine trials call for cautious optimism

  Never before have candidate vaccines been developed from scratch, tested on animals and completed early stages of human clinical

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CoronavirusHealthPublic HealthSARS-CoV-2World Health Organisation

Study finds evidence of  vertical transmission of coronavirus across the placenta

While about half-a-dozen studies published have already suggested vertical transmission of novel coronavirus from the mother to child, a study

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CoronavirusCOVID-19Public HealthSARS-CoV-2World Health Organisation

U.S. withdrawal from WHO is a lose-lose proposition for all

  The capricious decision to withdraw from WHO will have dire consequences for global public health. The departure of the

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ChinaCoronavirusPublic HealthSARS-CoV-2World Health Organisation

COVID-19: China’s dangerous obsession with secrecy a serious threat to global public health

  Contrary to what was earlier reported, China confirmed to the WHO of the cluster of cases of ‘viral pneumonia

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CoronavirusHealthICMRPublic HealthSARS-CoV-2World Health Organisation

COVID-19: States should bite the bullet and increase testing

It is important for every State to take a leaf out of Maharashtra’s book and test large numbers each day

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CDCCoronavirusHealthPublic HealthSARS-CoV-2World Health Organisation

COVID-19: To wear or not to wear a mask — a disastrous public health messaging

If WHO, CDC and the U.S. Surgeon General were equally responsible for the public health message disaster of discouraging mask

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CoronavirusHealthPublic HealthSARS-CoV-2World Health Organisation

WHO halts hydroxychloroquine arm of Solidarity trial

About two weeks after the RECOVERY trial announced that hydroxychloroquine does not reduce deaths among hospitalised COVID-19 patients and was

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ChinaCoronavirusHealthPublic HealthSARS-CoV-2World Health Organisation

Faeces samples can harbour infectious coronavirus, study finds

Chinese researchers were able to isolate and culture novel coronavirus from faeces samples. Confirmation of infectious virus in faeces samples

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Clinical trialCoronavirusFDAHealthHuman challenge studiesNIHPublic HealthSARS-CoV-2VaccinesWorld Health Organisation

WHO backs COVID-19 vaccine trials that deliberately infect participants

In new guidelines issued on May 6, WHO has backed human challenge studies for COVID-19 vaccines on the ground that

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CoronavirusHealthHerd immunityPublic HealthSARS-CoV-2World Health Organisation

COVID-19: Aiming to achieve herd immunity naturally is ‘dangerous’, WHO warns

It was mistakenly assumed that as this disease spreads across the world, only the severe cases become apparent while most

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Clinical trialCoronavirusHealthICMRPublic HealthSARS-CoV-2TuberculosisVaccinesWorld Health Organisation

Israel: No association found between BCG vaccination and coronavirus infection

Studying adults aged 35 and 41 years who have received BCG vaccine and those who have not received it during

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