Part 2 - Toby's COVID-19 Survival Guide From Hong Kong

Part 1 is here:

https://www.linkedin.com/pulse/tobys-covid-19-survival-guide-from-hong-kong-toby-mak/

Thank you for the positive feedback on my article above, much appreciated. I have also received some questions, motivating me to write this part 2.

COVID-19 could be in the air via respiratory droplets

See https://www.who.int/news-room/commentaries/detail/modes-of-transmission-of-virus-causing-covid-19-implications-for-ipc-precaution-recommendations

I do not wish to define size of droplets and argue whether COVID-19 is airborne. Frankly I do not give a damn. What I know is respiratory droplets could travel long distance, and could hanging in the air for some time (see https://www.ncbi.nlm.nih.gov/pubmed/17542834). That is why a crowded place, particularly confined place (live an elevator), is of high risk.