(Fighting New Coronary Pneumonia) The outbreak in Fujian has a long incubation period, low-age infection, and when to fight it, attracting attention

　　China News Service, Beijing, September 14 (Ma Shuaisha) The outbreak in Fujian suddenly struck. Since the first positive case was discovered on September 10, the transmission chain of the Putian epidemic has extended to Xiamen and Quanzhou.

This epidemic has caused more infections among young children, a longer incubation period of the suspected source virus, and when will it be effectively controlled, which have attracted public attention.

　　Why do younger people get more recruits?

　　The first positive case of the epidemic was found in a "timely spot check" at a local elementary school. The campus was densely populated and minors accounted for the vast majority. This school became one of the concentrated spreading points of the epidemic.

As of the 13th, Putian has reported a total of 85 cases of new coronavirus nucleic acid positive in this round of the epidemic, of which 36 were students, including 8 children in kindergartens and 28 elementary school students. Low-age children have more infections.

　　In an interview with the media, Peng Zhiyong, director of the Department of Critical Care Medicine at Zhongnan Hospital of Wuhan University, said that many of the people infected in the previous Yangzhou epidemic and this Putian epidemic were lagging groups in the vaccination work, such as the elderly and children.

This also illustrates the importance and urgency of expanding the scope of vaccination.

　　In order to do a good job in the prevention and control of the school epidemic in the fall semester, the Fujian Provincial Department of Education and the Provincial Health and Health Commission issued a notice on the 12th that students under the age of 12 in primary and secondary schools and kindergartens have not been vaccinated against the new crown virus and are immune to the blank population. In principle, schools at all levels and types are required to organize all teachers, students and staff to complete a new round of nucleic acid testing before September 19.

　　Wang Huaqing, chief expert of the China Centers for Disease Control and Prevention's immunization program, said at the press conference that China has included child and adolescent vaccination on the agenda and is currently carrying out vaccination in a tiered, focused, and scientific manner.

　　How to deal with the long incubation period of the virus?

　　The suspected source of the epidemic was the returnees from Singapore who were diagnosed on September 10.

It is worth noting that after the case entered the country on August 4, during the 21-day quarantine period, 9 nucleic acid tests and 1 serum test were all negative.

Delta virus is highly contagious and spreads quickly. Does the long incubation period of the virus in this case mean that the virus has undergone new changes and does the prevention and control strategy need to be adjusted?

　　At present, experts generally believe that it is difficult to determine whether the "ultra-long incubation period" cases that appeared in the Putian epidemic were caused by changes in the virus itself.

There are many reasons for the change of nucleic acid detection from negative to positive.

　　For example, Feng Zijian, deputy director of the Chinese Center for Disease Control and Prevention, previously analyzed that there may be rare cases of long incubation period, or there may be problems with the sensitivity of nucleic acid testing reagents, or close contacts may be infected during isolation. Various situations may be possible. exist.

　　Relevant experts pointed out that the "extra-long incubation period" is not common, and strengthening vaccination and personal daily protection are still the top priorities.

Peng Zhiyong also said that according to previous observations, about 95% to 99% of infected persons can be detected during the set concentrated quarantine observation period, but it is inevitable that there will be individual extreme situations.

　　When will this round of epidemic be effectively controlled?

　　Experts sent by the National Health Commission to Fujian work group recently judged that the current situation of the epidemic situation in Putian is severe and complicated, and the possibility that cases will continue to be found in communities, schools, factories and other populations is high, and there is a risk of spillover of the epidemic.

According to reports, the Putian epidemic transmission chain has spread to Xiamen, Quanzhou and other places. As of 8 o'clock on the 14th, Fujian Province has reported a total of 139 cases of local positive infections.

　　When will the epidemic be effectively controlled?

Tan Xiaodong, a professor at the School of Health of Wuhan University, said that although the epidemic broke out in villages and towns, and the local management level is not as good as in large cities, it will be difficult to prevent the epidemic, but this is not a crucial factor. There are already cases of successful control of the epidemic in towns and towns in China. The most critical issue for prevention and control is to “block off” the virus in time, and then organize forces to “encircle and suppress” the virus.

　　Experts from the National Health Commission to Fujian's working group also made research and judgments. As long as all measures and links are implemented, the scale of the epidemic is expected to be controlled before the National Day holiday.

　　Mid-Autumn Festival and National Day are approaching, and in the face of a new round of epidemic, epidemic prevention must not be relaxed.

Wang Huaqing previously reminded that during the holidays, gatherings and gatherings are not promoted, especially large-scale gatherings are not allowed, and people should not travel to medium- and high-risk areas.

　　Tan Xiaodong pointed out that in non-epidemic times and areas, we must strengthen our awareness of epidemic prevention, especially after the outbreak of an epidemic in Fujian, wearing a mask is to protect ourselves and society.

At present, we should insist on wearing masks, reduce crowd gathering, and emphasize personal protection.

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