The third level is suitable for people who are mainly infected with serious or even fatal diseases or their toxins through the respiratory tract; Level 4 is suitable for pathogenic microorganisms or their toxins that are highly dangerous to human body, spread through steam sol or unknown routes, and there is no effective vaccine or treatment at present.
P3 laboratory can be divided into cell level and animal level, and animal level can be divided into small animal level and large animal level.
The first P3 laboratory in China was built in 1987, which was mainly used for AIDS research.
P4 laboratory refers to the biosafety level 4 laboratory, which is specially used to study serious infectious diseases. It is the highest biosafety laboratory in the world. August 20 17, Wuhan P4 laboratory was officially put into operation. According to experts, the safety measures in P4 laboratory are stricter than those in P3 laboratory. Researchers should not only wear fully enclosed protective clothing, but also carry oxygen bottles.
Baidu Baike -P3 Laboratory