Thousands of schools close as smog envelopes India, Pakistan

Schools closed across large swathes of north India on Thursday as pollution hit hazardous levels for the third day, with growing calls for urgent government action to tackle what doctors are calling a public health emergency.

Nanosensors could monitor health in real time

Public health organizations have long warned about the devastating potential of superbugs—bacteria that are immune to any existing antibiotics. If left unchecked, by 2050 these microorganisms could kill 10 million people ...

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