London | Go-it-alone Sweden has again styled itself as a global outlier in confronting the COVID-19 pandemic, with the country's chief epidemiologist Anders Tegnell saying face masks are pointless, even on public transport.
Dr Tegnell, the author of Sweden's controversial lockdown-lite strategy
this week welcomed a decline in new cases and deaths as he continued to champion the country's largely voluntary approach to social distancing.
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Coronaviruses are a group of viruses that cause diseases in mammals and birds. In humans, coronaviruses cause respiratory tract infections that are typically mild, such as the common cold, though rarer forms such as SARS, MERS, and COVID-19 can be lethal. Symptoms vary in other species: in chickens
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