Outdoors it practically does not exist: it was not detectable. In hospitals, thanks to the frequent exchange of air, its presence is more limited than imagined: even in wards with patients characterized by high viral loads. While it circulates, and how, in the domestic one: up to 40-50 genomic copies of the virus per cubic meter of air. These values, however, can be influenced by the air exchange frequencies and by the number of positive subjects present in the homes, as well as by the development of the most common symptoms of the disease (dry cough) and by its evolution.
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