I think that is pretty hard. The current virus is working much like that scenario. Many people get the virus without getting severe symptoms. They just spread it. Then there are the 20% that get the pneumonia and one in ten of those people die.
Because most of the people who are contracting the decease and dying from it are men, you can work this conspiracy theory; the Chinese government thinks they have too many adult males because of their one child policy. So they invented a virus that attacks unhealthy people and men 50% more often than women. This will cull the herd of men, bring the population in line. And since men are more likely to participate in violent protests, the government reduces that threat as well.
[Because most of the people who are contracting the decease and dying from it are men, you can work this conspiracy theory; the Chinese government thinks they have too many adult males because of their one child policy. So they invented a virus that attacks unhealthy people and men 50% more often than women. This will cull the herd of men, bring the population in line. And since men are more likely to participate in violent protests, the government reduces that threat as well.]
https://en.m.wikipedia.org/wiki/Emperor_Gaozu_of_Han
Chinese government thinks they have too many adult males because of their one child policy. So they invented a virus that attacks unhealthy people and men 50% more often than women. This will cull the herd of men, bring the population in line. Since men are more likely to participate in violent protests, the government reduces that threat as well.
Smoking over time damages the lungs of most smokers and makes them more susceptible to respiratory infections.
www.cdc.gov
Smoking and Respiratory Diseases - CDC
Smoking makes chronic lung diseases more severe; and increases the risk for respiratory infections. Genetic factors make some people more susceptible to lung disease from smoking. ... After years of exposure to cigarette smoke, lung tissue becomes scarred, loses its elasticity, and can no longer exchange air efficiently.
What % of Chinese males over 50 are big time smokers?