[tpnCC]

In India,one of the slogans of Lockdown is Stay Home,Stay Safe. I think many other countries have urged their citizens to stay at home aswell.

My concern is, if the risk of transmission is more indoors than outdoors as this study indicates(https://theprint.in/health/sharing-indoor-space-major-infect...), Is staying at home making people Vit-D deficient coz of less exposure to sunlight?

And If this is true, is it one of the factors responsible for severe Covid19 outcomes?

Is this also the reason why old folks are severely affected from Covid19, coz they may tend to stay indoors more, relative to other age groups?

[ceejayoz]

"Stay home, stay safe" only works if the other people in your home stay home too. It's not surprising people get infected indoors - one sick person in a household, office building, or restaurant will infect those nearby. You're far less likely to get it from a random passerby on the sidewalk, as your exposure time is much more limited.