Джерело:
New Scientist - Online news
Дата публікації:
24/03/2020 18:32
Постійна адреса новини:
http://www.vsinovyny.com/6599351
You could be spreading the coronavirus without realising you’ve got it
24/03/2020 18:32 // New Scientist - Online news
People with covid-19 appear to be most contagious 15 hours before their symptoms start, and many people may not even go on to develop noticeable symptoms
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