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Hydroxychloroquine Drug is “ineffective” for postexposure prophylaxis Taking hydroxychloroquine after high or moderate risk exposure to covid-19 did not prevent illness in asymptomatic people, in a study of 821 patients published in the New England Journal of Medicine Public health Lung symptoms improve with cleaner air One in six people (16%) with lung conditions in the UK noticed improved symptoms as air pollution levels have fallen with lockdown, in a survey of 14 000 people by the British Lung Foundation The charity and the Taskforce for Lung Health are calling for a long term commitment to reducing air pollution in the UK, by adopting the World Health Organization’s legal limits
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