Dalian CDC latest reminder

2022-05-27 0 By

Hemorrhagic fever of renal syndrome (also known as the epidemic hemorrhagic fever, hereinafter referred to as hemorrhagic fever) is caused by hantavirus natural foci of an infectious disease, is one of the key prevention and control of infectious diseases in our country, our city centers for disease control and prevention of infectious diseases prevention and control is also very seriously, because of its reservoir is mainly to mice, it can by monitoring the mouse to predict the risk of hemorrhagic fever.Rat situation monitoring including poisoned mice and rat density rate monitoring, zhuhai for mixed epidemic area (both type mice and rats), peaks generally 3 ~ 5 months of the year and 10 ~ the next year on January, rat situation monitoring usually take place within one month before the onset of peak, the spring and autumn period and the two season are feeling monitoring, if discover the rodent populations or with hantavirus rat region,The area should be organized in time to kill rats.When the rodent density is monitored by night trapping method, if the rodent density in the field is greater than 5% and that in residential areas is greater than 3%, preventive rodent control should be organized in the area.If there is an epidemic area, the rodent should be exterminated immediately. After extermination, the density of night rodents in the field should be less than 3%, and that in residential areas should be less than 1%.The time of deratization in our city is usually in February in spring and September in autumn.Since the peak of rodent incidence in spring, rodent control should focus on residential areas in spring.In autumn and winter, the peak incidence was of wild rat type, so the villages and surrounding fields were mainly affected in autumn and winter.In areas where rodents with the virus gather or where cases occur, rodent eradication and epidemic area treatment should be carried out within a radius of 300 to 500 meters.The rodent situation monitoring results in 2021 were as follows: the rodent density in the field in spring was 0, the rodent density in residential areas was 2.68%, and the rodent virulence rate was 0.In autumn, the rodent density in the field was still 0, the rodent density in residential area was 0.49%, and the rodent carrying rate was 0. The rodent density in residential area decreased year-on-year.Compared with the standard of preventive deratization, the density of rats in autumn is low, and the risk of hemorrhagic fever is expected to be low.Finally, the public should be vaccinated in time, do a good job of their own protection, should wash their hands, indoor ventilation, usually appropriate exercise, so that you can ensure the smooth passage of the risk period.Source: Dalian CDC editor: Zi Tong