[Altavia]

Originally Posted by GoodLife

Let's look at what the science says.

Results: Three hundred and eighteen outbreaks with three or more cases were identified, involving 1245 confirmed cases in 120 prefectural cities. We divided the venues in which the outbreaks occurred into six categories: homes, transport, food, entertainment, shopping, and miscellaneous. Among the identified outbreaks, 53·8% involved three cases, 26·4% involved four cases, and only 1·6% involved ten or more cases. Home outbreaks were the dominant category (254 of 318 outbreaks; 79·9%), followed by transport (108; 34·0%; note that many outbreaks involved more than one venue category). Most home outbreaks involved three to five cases. We identified only a single outbreak in an outdoor environment, which involved two cases.

Conclusions: All identified outbreaks of three or more cases occurred in an indoor environment, which confirms that sharing indoor space is a major SARS-CoV-2 infection risk.

https://www.medrxiv.org/content/10.1...058v1.full.pdf

The risk in outdoor activity is very small, unless it involves large groups of people in close contact.

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Very interesting and not surprising risk is significantly reduced outdoors.

https://www.dhs.gov/sites/default/fi...pr-final_0.pdf

Increasing ventilation of interior interior spaces also looks like a significant risk reducing mitigator.