At 04:00 on January 5, the number of new cases in Henan exceeded Shaanxi in a single day. Among the 132 newly confirmed local cases nationwide, 64 were in Henan and 63 were in Shaanxi.
A total of 130 cases have been diagnosed in Henan, involving 6 places
Following Shaanxi, the Henan epidemic that suddenly spread more frequently has attracted public attention. At present, the Henan epidemic involves six cities in the province, including Zhengzhou, Luoyang, Xuchang, Zhoukou, Xinyang, and Shangqiu. Among them, Xuchang has 50 new confirmed cases in a single day on January 5, which is also the place with the most confirmed cases among the six places.
According to the details of the case trajectory currently disclosed, the current two cases of infection in Suiyang District of Shangqiu City and Gushi County of Xinyang City are related to Erqi District of Zhengzhou City. The two cases of infection in Zhoukou have visited a ceramic factory in Yuzhou where confirmed cases were previously found. Pulling goods, the relationship between infected people in other areas is not clear.
On January 5, a new case of asymptomatic infection was reported in Suiyang District, Shangqiu City, which was a close contact of a positive person who was initially screened and ate at a restaurant in Erqi District, Zhengzhou City. There was a new confirmed case and a new case in Xinyang Gushi County. Cases of asymptomatic infection, both of them returned to Gushi County from Erqi District, Zhengzhou City on January 3.
As Xuchang has the largest number of confirmed cases among the six places, Chen Tao, the mayor of Yuzhou City in Xuchang, said in an interview with “News 1+1” on January 6 that we found the first case on the morning of January 2. The investigator found that the case was working in a small ceramic company, and he was mainly engaged in the work of door guards and cleaning. Later, through nucleic acid testing, there were subsequent cases, many of which were related to this ceramic company.
The case was found to coincide with the New Year’s Day holiday
Where did all the people from Henan go?
In this round of the epidemic, Luoyang, Henan first reported asymptomatic infections on December 31, 2021. After that, it was the New Year’s Day holiday. The Health Times found that the three-day small holiday, the main destinations for people from Henan Province to emigrate were neighboring provinces, ranking The top five provinces are Shandong, Anhui, Hubei, Jiangsu, and Hebei, which together account for more than 50% of the total migrant population.
At present, Zhengzhou and Xuchang, where the current round of the epidemic in Henan are mainly concentrated, the migrants mainly move within the province. According to Baidu’s migration map, about 80% of Zhengzhou’s migrant population was concentrated in Henan Province during the three-day long holiday. The main destinations of the population migrants from Zhengzhou were Kaifeng, Xinxiang, Xuchang, Zhoukou, and Jiaozuo; Among the migrants in Xuchang, nearly 90% are concentrated in Henan Province. The major destinations of the migrants are Zhengzhou, Pingdingshan, Luohe, Zhoukou and Kaifeng.
There are many sporadic cases in Henan, how to prevent and control?
Academician Zhang Boli said in an interview with the Health Times on January 6 that this round of Henan epidemic showed several characteristics, such as multiple sporadic outbreaks, more mild and asymptomatic infections, and reduced vaccine protection.
One is that the epidemic is caused by the delta mutant virus, which has the characteristics of insidious transmission, multiple spreads and concentrated outbreaks. The Xi’an epidemic has hidden transmission, and the outbreak occurred only after a certain scale of community transmission and multiple spreads, and there were spillover cases. The current round of the epidemic in Henan Province is also mainly caused by Delta, and the transmission patterns are similar. They all have the characteristics of concealed transmission, multiple spreads and concentrated outbreaks. Henan Province can learn from the existing epidemic prevention and control experience of Shaanxi Province.
Second, there are fewer severe clinical cases, and relatively more cases of mild and asymptomatic infections. Many people infected in this epidemic had no symptoms when they were positive, and they developed mild cough, runny nose, fever and other symptoms one after another after admission. The current clinical classification is mostly mild and common. In the current round of Xi’an epidemic, there are three clearer transmission chains, but how the Delta virus spread from the inbound flight is still unknown. Therefore, the task of foreign defense import is still arduous, and the relevant departments of disease control need to be cautious.
Third, the protective power of vaccines has a downward trend, but the prevention of severe illness is still effective. With the advancement of the national new crown vaccination work, most people have received two doses. The data shows that the vaccination rate in Xi’an and Zhengzhou exceeds 95%, but there are still local epidemics, which to some extent indicates that the protection of the vaccine has declined and the mutant virus may exist Immune to escape. However, according to the current research results, the vaccine has a very good effect in reducing the rate of severe illness and mortality, with an effective rate of 80% to 90%. Therefore, it is still necessary to strengthen vaccination and increase vaccine coverage.
Fourth, the Xi’an epidemic prevention and control model needs to be summarized. After each epidemic, a new summary is needed. my country has a vast geographic area and each province and city has its own prevention and control policies and characteristics. Even Wuhan and Shanghai’s experience in epidemic prevention and control cannot be copied to another city. The current round of the epidemic situation in Xi’an is relatively complicated. An important feature is that community transmission has occurred when the epidemic is discovered, and there are more hidden transmissions. However, after several rounds of large-scale nucleic acid testing and 12 days of strict social control in Xi’an, the rapid increase in the spread at the community level has been brought under control, the overall trend of the epidemic has shown a downward trend, and the effects of early prevention and control have appeared. Xi’an’s experience in the prevention and control of mutated viruses this time is worth summarizing and enriching the reference blueprint for epidemic prevention and control in different regions of our country.