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Articles on Health

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A little more than 8% of vaccinated people in the U.S. have received the Johnson & Johnson vaccine. SOPA Images/Contributor/Light Rocket via Getty Images

Do I need a booster shot if I got the Johnson & Johnson vaccine? A virologist answers 5 questions

It has been six months since the Johnson & Johnson vaccine received emergency use authorization. What does six months of data show about its efficacy, side effects and protection from variants?
Low-cost air-ventilation systems have been installed in many classrooms across the U.S. to help reduce COVID-19 transmission. Halfpoint Images/Moment via Getty Images

COVID-19 has spurred investments in air filtration for K-12 schools – but these technologies aren’t an instant fix

Air-ventilation upgrades have been badly needed in U.S. classrooms since long before the pandemic. Low-tech filtration systems that cost about the same as a textbook per student can make a big difference.
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Appetite for convenience: how the surge in online food delivery could be harming our health

During the pandemic, Australians have been using food delivery apps more than ever. We’ve assessed how healthy the options available to us are — and the news isn’t good.
A station passageway is crowded with commuters wearing face masks during rush hour at Shinagawa Station. A recent survey suggests that 83 per cent of Japanese citizens don’t want the Olympics to proceed as scheduled, fearing a surge in case numbers. (AP Photo/Eugene Hoshiko)

The WHO and the IOC are playing with lives at state-of-emergency Tokyo Olympics

Let’s make one thing perfectly clear — nothing short of people’s lives are at stake at the Tokyo Olympics. No amount of money can justify a single preventable death.
Statistical infrastructure can help improve everything from health care to politics. Andriy Onufriyenko/Moment via Getty Images

Low- and middle-income countries lack access to big data analysis – here’s how to fill the gap

Data science infrastructure is sorely needed in many places. Doctors Without Borders brings medical help to nations in need, but similar efforts are relatively small for statistics.
Nigeria’s President Muhammadu Buhari shows his COVID-19 certificate after receiving his first dose of the Oxford/AstraZeneca vaccine in March 2021. Photo by Kola Sulaimon / AFP via Getty Images

Nigerian academics weigh in on the faults and frustrations of managing COVID-19

Experts assess Nigeria’s response to COVID-19 so far and express worry that the country does not appear to have learnt much; it isn’t prepared for the next pandemic.
Alzheimer’s, like many diseases, has a genetic component. Tek Images/Science Photo Library via Getty Images

Mixed-ancestry genetic research shows a bit of Native American DNA could reduce risk of Alzheimer’s disease

Using a technique called admixture mapping, researchers can leverage the diversity of people with mixed ancestry to look for hard-to-find genetic risk factors for diseases like Alzheimer’s disease.

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