2019-nCoV targets ACE2 receptor cells in the lung.

Current estimated death rate is 15% (based on now slightly out-of-date Lancet articles).

Asian men are the most susceptible group.

Male / female infection rate currently about 3:1 (but based on low statistics).

Ratio of ACE2 cells in Asian men to Asian women is about 4:1.

Ratio of ACE2 cells in Asian men compared to whites or African-Americans is 5:1.

https://www.biorxiv.org/content/10.1101/2020.01.26.919985v1....

See some criticisms of the methods and results in the comments. Interesting correlation of ACE2 to stress and high blood-pressure, so could be strongly affected by some treatments for hypertension.

It is just about possible, in some qualitative hand-waving way, that reducing susceptibility by 80% could drop R0 from 5 to 1, hence reduce the threat of an epidemic in other regions.

> We also noticed that the only Asian donor (male) has a much higher ACE2-expressing cell ratio than white and African American donors (2.50% vs. 0.47% of all cells). This might explain the observation that the new Coronavirus pandemic and previous SARS-Cov pandemic are concentrated in the Asian area.

the only Asian donor, n=1. It's too bold to claim that Asian men are the most susceptible group.

That's pretty interesting.

Because they likely don’t have enough test kits yet.

You are not wrong to find this concerning.

Especially given China's growing presence in Africa, there has to be quite a bit of travel between Africa and China.

They probably have no way to test it.

Also -very maybe- the (rich) chinese are preparing their future secret extractions