Coronavirus: How come a doctor in his 30s has died? And other questions

It might be that Dr Li had other, unreported, health conditions that put him at greater risk. Or he may have been exposed to a higher initial dose of the virus that meant he developed more severe symptoms. But it is also worth panan remembering that seasonal flu mostly kills the young and old, but can kill people in the prime of their life.

Chinese people wear masks near the คาสิโนออนไลน์ Tiananmen Gate Tower in Beijing, China
Is a face mask useful against the virus and how often does it have to be replaced? Tom Lim, Bali, Indonesia
There is very little evidence that wearing face คลิปโป๊ masks make a difference. Experts say good hygiene - such as regularly washing your hands and certainly before putting them near your mouth - is vastly more effective.

What is the incubation period for the coronavirus? - Gillian Gibs
The World Health Organization says คลิปโป๊ the incubation period, which is the time before symptoms appear, ranges from two to 10 days.

These estimates will be narrowed down as more data becomes available.

Knowing and understanding the incubation period is very important. It allows doctors and health authorities to introduce more effective คลิปโป๊ ways to control the spread of the virus.

It means, for instance, that they can introduce more effective quarantine systems, isolating those suspected of carrying the virus คลิปโป๊ from others.

Do people who have contracted coronavirus return to full health? - Chris Stepney, Milton Keynes
Yes. Many of those who contract coronavirus คลิปโป๊ will experience only mild symptoms. These include fever, coughing and respiratory problems. Most people are expected to make a full recovery.

But it can pose a particular คลิปโป๊ risk for elderly people and those with pre-existing problems like diabetes or cancer, or weak immune systems.

As of 7 February, Chinese health authorities said that 636 people had died from the virus. The number of confirmed cases stands at 31,198.

An expert at China's National Health Commission has said that it can take a week to recovery from mild coronavirus symptoms.