(Health Times reporter Zhao Mengmeng) On January 26, after the Zhejiang Provincial Disease Control Department sequenced the first case sample, the confirmed case in Hangzhou, Gan Moumou, showed that it belonged to the Aomi Kerong variant strain. The CDC found that the case was highly homologous to the virus sequence sampled abroad on December 11, 2021, and was an independent outbreak. Multiple positive copies of Opmi kerong nucleic acid were detected in the imported materials that the company had not used.
The confirmed cases in Beijing on the 15th also sent and received international mail a few days ago. After sampling and testing, 22 environmental specimens of the international mail, including 2 on the outer surface of the package, 2 on the inner surface and 8 paper specimens in the document, were all positive for nucleic acid testing, and the specific mutation sites of the Aumechjong mutant strain were detected. The international mail was notified from Canada on 7 January, passing through the United States and Hong Kong, China, to Beijing, and the case received the mail on 11 January. The virus survives in a non-cold chain environment for several days.
The "heirloom" of Aomi Kerong has crossed the cold chain environment?
On January 17, Pang Xinghuo, deputy director of the Beijing Municipal Center for Disease Control and Prevention, said at the press conference that the new crown virus can survive for a long time in low temperatures, and the risk of transmission in winter increases. In the past, many provinces on the mainland have also reported cases of transmission through cold chain or non-cold chain items, and recently there have been positive reports of overseas mail and other items in many places on the mainland.
According to Reuters on January 24, laboratory studies by Japanese researchers found that Omiclon can survive longer on plastic surfaces or human skin than other early new coronavirus variant strains. Based on the results of bioRxiv, a preprint website for biological research, the researchers tested the average survival time of the new coronavirus strain on the plastic surface, which was 56 hours for the original strain, 114 hours for the Delta strain, and 193.5 hours for the Omilon strain, showing that the Omilon could survive on the plastic surface for 8 days.
Strengthen the elimination of international mail in many places
After many places reported that the international express delivery nucleic acid test was positive, many places strengthened the elimination measures of international express delivery and mail.
Affected by the Winter Olympics, the State Post Bureau, the Ministry of Public Security, the Ministry of State Security to strengthen the safety management of goods sent during the Winter Olympic Games, from January 25 to March 13, Beijing, Zhangjiakou delivery enterprises for the mail into Beijing into Zhangzhou fully implement the "secondary security inspection" before delivery, no security inspection and disinfection of the mail express mail return.
According to Shenyang Daily reported on January 20, after arriving at the Shenyang International Mail Processing Center, international mail must go through: nucleic acid testing - killing - standing for 24 hours - taking photos and unpacking bags - standing for 24 hours - sorting - customs and other processes.
In mid-January, the Guangdong Postal Administration issued the "Notice on Further Strengthening the Epidemic Prevention and Control Work of the Provincial Delivery Link of International Mail Express", which emphasizes that enterprises should carry out secondary disinfection treatment at the first time after the international mail express clearance and reach the first stop in the destination city, and the disinfection process should be monitored throughout the process, and the disinfection should be pasted on the packaging.
The Department of Safety Supervision and Administration of the State Post Bureau issued a notice on the 16th that all enterprises should earnestly do a good job in disinfection and ventilation of international mail express processing places; for imported international mail express mail, after entering the production and processing link, the first time to carry out disinfection of all aspects of the outer packaging.
How to deal with the possibility of "material transmission to people"?
For ordinary people, how should we prevent the risk of epidemic transmission in sending and receiving couriers? At the previous press conference of the joint prevention and control mechanism of the State Council of China, Zhang Liubo, chief expert of disinfection at the China Center for Disease Control and Prevention, pointed out that when receiving express delivery, it is necessary to do a good job of appropriate protection, wear masks, gloves, and maintain a distance of one meter. The surface packaging of the express delivery should not be brought indoors, and when it is really to be brought in, it can be disinfected by wiping and disinfecting on six sides of disinfectant wipes or spray disinfection. After handling the courier, be sure to do a good job of hand hygiene.
Pang Xinghuo suggested that if you receive overseas mail or items, you should reduce direct contact and communication, achieve contactless handover as much as possible, and if you need to sign in person, you should keep a distance of more than 1 meter from the courier. When disassembling parts, try to carry out outdoors, and the outer packaging should not be taken home, and should be classified according to domestic garbage. If you need to take it home, you can use chlorine-containing disinfectant to fully disinfect the inside and outside packaging. After handling the mail, take off the gloves in time, change the mask, carefully disinfect the hands or wash the hands, and avoid touching the mouth, eyes, and nose with unclean hands.
Pang Xinghuo also reminded the public that during the high incidence of epidemics abroad, the purchase of overseas goods should be minimized.
Editor-in-charge: Zhao Mengmeng
Proofreader: Qiu Yue
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