What are the traditional methods of using biological weapons?

Biological warfare agents that are difficult to control can be released and spread through various forms such as aerosols, livestock, plants, letters, etc. As long as 100 kilograms of anthrax spores are spread in a large city by airplanes, aerial bombs, rats, etc., it will endanger 300 people.

The lives of millions of citizens.

Insects and animals carrying bacteria are easily mixed with the original local species and are difficult to detect.

Affected factors are complex and limited. Biological weapons are easily affected by various factors such as weather and terrain. Scorching sun, rain, snow, and strong winds can all affect the effectiveness of biological weapons.

In addition, biological weapons are difficult to control when used, and improper use can endanger the user himself.