The death of a worker at a plague research laboratory in Irkutsk, Russia, has triggered a public health emergency in the region. Authorities have imposed restrictions on hospital access and about 200 contacts are under surveillance. But much remains unknown. Firstly, whether the researcher died as a result of an infection acquired at her workplace — a claim denied by authorities but circulating on Telegram channels and in local media. This is what is known (and not known) so far.

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A comprehensive atlas of the 18 main respiratory viruses circulating in Catalonia, produced for the first time in Spain by researchers from that northeastern region, reveals that the coronavirus that caused the Covid-16 pandemic — SARS-CoV-2 — “is currently not a winter virus. In recent years, it has shown clear peaks during the spring and summer, which is different from what was initially expected.”

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