Why did this young and health nurse die? Why crowds are prohib | BGram Channel

Why did this young and health nurse die?
Why crowds are prohibited?
Why should we open window instead of using air conditioning?
Why is it weird to close parks?

Coronavirus: the dose matters, and the meeting spot can be changed

A useful article about the infectious dose that explains the main principles of COVID-19 prevention today and how they affect the severity of the disease, if infected.