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"There's a real chance that the virus will burn out naturally before any vaccine is developed. We're seeing a roughly similar pattern everywhere - I suspect we have more immunity than estimated. We need to keep slowing the virus, but it could be petering out by itself."The statement triggered quite a response, making Sikora later clarify that it was his personal opinion and he was positing a "feasible scenario" that might be possible in the current "unknown situation." The scientist went on to say that no one knows "what will happen for sure" and urged the public to stick to social distancing rules.

"Wearing medical masks when not indicated may cause unnecessary cost, procurement burden and create a false sense of security that can lead to neglecting other essential measures such as hand hygiene practices."In fact, the WHO's advice includes a caution that the improper use of masks may even "increase the risk of transmission associated with the incorrect use and disposal of masks."
Comment: See also: