It needn't sterilize the air to propagate the route to

It needn't sterilize the air to propagate the route to cut off
It is reported ' The intersection of reporter and Zheng dexterous) " first flows " Could the virus be transmitted through air, scientific circles stores and has objection. The Chinese on-the-spot epidemiology training project group of Center for Disease Prevention and Control of China cooperates with Center for Disease Prevention and Control of Sichuan Province, epidemic situation launch epidemiology confirm after surveying and studying, " first flows " to break out together The spread route of the virus is the droplet transmission, have not found the evidence that this virus can be transmitted through air. According to this result of study, cut off " first flows " It doesn't need to sterilize the air to propagate the route. The intersection of research and relevant thesis this publish Center for Disease Prevention and Control " take place infective disease " at the magazine " newly in U.S.A. preferably a few days ago.

On June 5, the base of Sichuan of training project of China's on-the-spot epidemiology learns, a local touring party happens together " first flow " Epidemic situation. Group and Center for Disease Prevention and Control, Sichuan Province unite this project, to the passenger and participating in the friend round and round of travel who travel and searching for together with it on 3 flights which the first patient has taken, the result is searched for to 10 " First flows " Two generations of cases, symptom relies mainly on generating heat, swallowing aching and cough.

It is reported, the first patient of this epidemic situation goes by air from U.S.A. to Hong Kong, from Hong Kong to Chengdu, from Chengdu to Jiu Zhaigou. Flow, transfer result, reveal the patient begin to appear symptom when Chengdu from Hong Kong. Take from Chengdu to the intersection of Jiu Zhaigou and the intersection of travel and getting round and round person who suffer from of flight together with the patient ' 30%) ,Locality join the intersection of member and suffering from rate of travel party with Jiu Zhaigou ' 29%) Basically the same, seize the opportunity from Hong Kong to Chengdu 91 passenger with this patient together and from Chengdu until Jiu Zhaigou join 87 passengers of travel party this, have illness coming on. With taking the passenger that the airtight air-conditioned passenger train travels to Jiu Zhaigou, have 9 people who have illness coming on in 16 people talking with this patient at short range, the suffering from rate reaches 56%; And 14 people that does not talk same below to hold train nearly 7 hours in the situation that patient cough constantly, but nobody has illness coming on. Meanwhile, talk time greater than or equal to person who suffer from 80% 10 minute person, higher than, talk from 2 minute to 9 minute person (17% of suffering from etc.) ,As to having illness coming on the risk is 4.8 times. In addition, several kinds while contacting the way below at short range, although has not found that have difference of meanings of statistics, the risk that it is higher to have illness coming on: Has sat on the plane in 2 platoons and the less than ones of this patient, the relative risk of the onset is 1.9 times beyond platoon 2 person; Sit on the car within 2 platoon of this patient person, the onset risk is 1.3 times not sitting within row 2 person; The risk is 2.5, 2.6 times of and 1.6 times respectively that the ones that accept the first patient's chewing gum, share faucet of the toilet and deskmate and have dinner etc. with it relatively have illness coming on. This result shows, first type H1N1 influenza mainly spreads through the droplets, but there is no evidence propagated through the air.

It is introduced droplet transmission department travel directly, patient sneeze, gush out arrive getting close mouth, nose mucous membrane virus directly, thus result in infecting.

The expert points out, the aforesaid finds it to guiding" first flows " It is of great significance to prevent and control. In order to reduce the droplet transmission, only need to cover the mouth, nose while coughing or sneezing with napkin, towel, sleeve,etc., wear the general gauze mask ' And does not need N95 gauze mask) ,Wash hands hardworkingly, avoid keeping in touch with the patient at short range, can achieve the good result.



It needn't sterilize the air to propagate the route to cut off