UVC related information

　　Sufficient ultraviolet radiation on January 28, 2020 is an effective way to eliminate pathogens
　　In January 28, 2020, the novel coronavirus pneumonia diagnosis and treatment plan (Trial) Fourth Edition, published by the National Health Protection Commission and the State Administration of traditional Chinese medicine, described: the virus is sensitive to ultraviolet and heat.
　　The working principle of ultraviolet sterilization is to destroy the molecular structure of DNA (deoxyribonucleic acid) and RNA (RNA) of microbial cells, resulting in the death of growth cells and (or) regenerative cells, so as to achieve the effect of sterilization and disinfection.In particular, 240 nm-280 m ultraviolet is the most effective sterilization band.All coronaviruses belong to single stranded positive RNA viruses.
　　In addition, during the SARS period, the research team of Dong Xiaoping, an expert from the Institute for viral disease control and prevention of the Chinese Center for Disease Control and prevention, found that the SARS virus was sensitive to heat radiation and UVC.The SARS virus could be killed in 30 minutes after the coronavirus was irradiated with UVC with an intensity greater than 90 μ w / cm? 2.The researchers also found that as the temperature increased, the viability of the coronavirus decreased significantly.Under the condition of serum-free culture, heating to 75 ℃ for 30 minutes can kill the coronavirus.The recent thermal radiation experiment of 2019 ncov shows that it can be killed in 30 minutes at 56 ℃.Therefore, the radiation dose of UVC to kill 2019 ncov may be less than that of SARS CoV, but the specific dose needs further study and confirmation.
To sum up, novel coronavirus 2019-nCov epidemic can be effectively prevented and controlled by UVC combined with other protective measures.