[chrisco255]

That and they should go outside in the heat and humidity as much as possible. The virus can live indoors for 5 days to 2 weeks in air conditioned environments. Outside in high humidity? Minutes. Open the parks, encourage people to go outside and exercise.

[zrail]

[citation needed]

[chrisco255]

"The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus"

https://www.hindawi.com/journals/av/2011/734690/

"The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22–25°C and relative humidity of 40–50%, that is, typical air-conditioned environments."

[beervirus]

Just to be clear, that's about the original SARS, not the novel coronavirus (COVID-19 / SARS-CoV-2). I don't know of any studies about the effects of temperature and humidity on how long the current virus survives on surfaces.

[chrisco255]

Just to be clear, they are both related coronaviruses that are extremely similar on a molecular level. What would lead you to believe that things that are generally true for viruses and especially true for the highly related SARS-COV would not be true for SARS-COV2?

[beervirus]

I didn’t say it was necessarily, or even probably, different. I was pointing out (because you chose not to for some reason) that you were citing a study from a decade ago about a different virus.

[wool_gather]

There was this one last month, but it was fast and fairly small and I don't think anyone's tried reproducing it: https://news.ycombinator.com/item?id=22611099

[tedunangst]

And after people go to the park we prevent them from returning indoors for 2 weeks while we wait for the virus to die?

[chrisco255]

I would argue for people opening their doors and windows and shutting off their A/C as we enter early summer. But even where that's impractical, you're not likely to contract the disease outdoors at all. Besides heat, light, and humidity, there's a huge volume of air for particles to diffuse in. This limits your exposure by default, especially if you pair that with physical distancing.