On December 28, 2020, everything was as usual. A villager who often lived in Xiaoguozhuang Village, Zengcun Town, Gaocheng District, Shijiazhuang City, took a rented bus to participate in a wedding ceremony held in a nearby hotel with his fellow villagers. At 4:00 in the morning six days later, she felt cold, chest tightness, accompanied by coughing and expectoration, and her temperature was 38.7 ℃. Then, accompanied by her family, she took a rented car to the Second Affiliated Hospital of Hebei Medical University for treatment, and was finally diagnosed as a confirmed case of COVID-19.
It is January 2, 2021. The prevention and control of the COVID-19 epidemic in Hebei Province also sounded a new round of alarm on this day. As of 24:00 on January 14, the number of locally confirmed cases in Hebei Province has increased to 553 (17 cases of severe type, 471 cases of ordinary type, 65 cases of mild type), and 2 cases of confirmed cases imported from abroad (ordinary type).
In 553 confirmed cases flow survey information released by the Health Commission of Hebei Province, many characteristics of the current round of epidemic situation in Hebei Province are shown. For example, the confirmed cases are clustered in Xiaoguozhuang Village and Nanzhaiqiao Village geographically. In the crowd portrait, most of the cases involve middle-aged and elderly patients, the average age of the cases is 45 years old, and the number of women patients in all age groups is more than men. In the action track, the people who live in villages and live at home freely account for a large proportion as the main action description. In terms of diagnosis and treatment information, the average interval between the first symptom and the positive diagnosis was 4.4 days.
The number of newly confirmed cases in a single day in Hebei shows an increasing trend, with the highest daily increase of 90 cases
The number of new cases of COVID-19 in a single day in Hebei Province has increased since January 2. During the period, January 12 and January 14 saw the largest increase, with 90 new cases added in a single day. As of January 14, the cumulative number of confirmed cases had reached 553. According to the public epidemiological survey information, a large number of cases were found through nucleic acid screening (whole village detection) in many places around January 3. The increase in the number of new cases is also related to the fact that a large number of asymptomatic infected people become confirmed cases.
This round of epidemic situation in Hebei Province is mainly concentrated in Shijiazhuang, Xingtai and Langfang. As of January 14, Shijiazhuang had the largest cumulative number of confirmed cases, up to 531. 34 cases in Xingtai and 1 case in Langfang. The epidemic situation in Shijiazhuang mostly concentrated in Gaocheng District, spreading from Gaocheng District to Yuhua District in the main urban area, and Xinle City, Zhengding County and other regions in the northwest of Gaocheng District. As of January 14, there were 442 confirmed cases in Gaocheng District. The epidemic situation in Xingtai was concentrated in Nangong City, and one case in Langfang was located in Gu'an County.
The most cases of infection are between 35 and 68 years old, involving many occupations
Among the cases, there are fewer young patients, and the majority are young adults and middle-aged and elderly patients. Most patients are aged 35-68 years, with an average age of 45.7 years. The youngest case is 6 months old, and the oldest case is 90 years old. The prevalence rate of women is higher than that of men in all age groups, and the total number of female cases is about 1.8 times that of men.
Of the 553 stream survey information, 144 directly or indirectly disclosed the patient's occupation. According to statistics, there were 90 kinds, most of which were students, teachers and workers. Patient positions include teachers, taxi drivers, medical workers and other jobs with high interpersonal exposure.
The cases are mainly concentrated in rural areas, with a large number of people living at home
The residential addresses of the cases are mainly concentrated in rural areas. Of the 553 cases, 172 cases are located in Xiaoguozhuang Village and 74 cases are located in Nanqiaozhai Village. The epidemic situation in rural areas has piled up, revealing the weakness of epidemic prevention and control in rural areas. Among the case behaviors, the cases with free activities in the village as the main or only behavior description are the most, and the cases with home activities as the main or only behavior description also rank the third in the behavior frequency.
There are 428 cases of travel mode mentioned in the case. According to the public flow survey information, a large number of cases are driven by themselves or by electric vehicles. The increase in the number of new cases is also related to some cases who choose to travel by foot or bus. As of January 14, the number of people who choose to drive by themselves is the largest, covering 13 types of transportation.
In addition, this round of confirmed cases involved more than 250 locations, including 261 confirmed cases in Xiaoguozhuang Village, 117 in Nanqiaozhai Village, 68 in Liujiazuo Village, and 43 in Oujing Ecological Garden. According to the action track of the confirmed cases, most people were infected after they went to Xiaoguo Village and Nanqiaozhai Village.
94 cases were confirmed after attending the wedding ceremony. These three weddings are critical
According to statistics, there were 94 cases who participated in weddings and were confirmed from January 2 to 14, of which the weddings with more confirmed cases were the weddings at a hotel on Airport North Road on December 28, and the weddings at Haoyunlai Hotel in Nanqiaozhai Village on December 30 and January 1, with 29, 11 and 17 people respectively.
Among them, 5 cases have participated in multiple weddings.
Cases 5-7 attended the wedding ceremony with their son near the village on January 1, the wedding ceremony at the former Xiguan Village Hotel on January 2, and the wedding ceremony near the village on January 3. Case 12-47 attended the wedding ceremony at Haoyunlai Hotel in Xiaoguozhuang Village on January 1 and Baiji Restaurant in Xiguan Village, Xiguan Town on January 2. Case 12-49 attended the wedding ceremony at a hotel on Airport North Road on December 28, at Haoyunlai Hotel in Nanqiaozhai Village on January 1, and at Laobaijia Hotel on January 2. Case 14-6 attended the wedding ceremony at Haoyun Hotel in Nanqiaozhai Village on December 29, and the wedding ceremony was held in Zhunzhou Village on December 30. Cases 14-17 attended the wedding ceremony in a hotel on Airport North Road on December 28 and Haoyun came to the hotel in Nanqiaozhai Village on December 29.
According to the action track of the wedding participants, most of them have been to other places after the wedding and met different people. The potential danger is self-evident.
The epidemic involved at least 22 schools and 51 related cases
As of 24:00 on January 14, the epidemic in Shijiazhuang City, Hebei Province, involved 22 schools, including 6 universities, 7 middle schools and 9 primary schools. A total of 51 people were diagnosed, including 25 students, 9 teachers or other school workers, and 17 relatives of students. The two schools, Xiaoguozhuang Village Primary School and Gaocheng District No. 7 Middle School, had the most confirmed cases.
In the current survey track, this place appeared 22 times
According to the data sorting, the reputation building in Xinle City, Shijiazhuang has repeatedly appeared in the action track of cases. As of January 14, a total of 22 confirmed cases in Shijiazhuang had the action track of Xinle Credit Building. Among them, the three confirmed cases on January 10 and 11 were employees of Xinle Reputation Building, and cases with identities such as students and company employees also visited here for activities.
The average interval from the first symptom to the positive nucleic acid test is 4.4 days, and the longest interval can reach 17 days
From 122 of the 553 cases confirmed from January 2 to January 14 with symptoms, the average interval between the first symptom and the positive nucleic acid test was 4.4 days, and the longest interval was up to 17 days. A long time interval may lead to a great increase in infectivity and an increased risk of human to human transmission. Some patients also had symptoms later than the first positive time of nucleic acid test, up to 6 days. Among them, there are mainly 16 kinds of symptom descriptions.
Mi Feng, spokesman of the National Health Commission, said when introducing the characteristics of the current round of epidemic in China, the epidemic is characterized by long duration, wide coverage, fast transmission, large age of patients, and high proportion in rural areas. In some places, community transmission and multi generation transmission have emerged.
After the onset of winter, the global epidemic has become increasingly severe. The occurrence of local clusters and sporadic cases in many local areas is a reflection of the huge pressure on China's epidemic prevention and control. Feng Zijian, deputy director of the China Center for Disease Control and Prevention, said that in the face of the upcoming Spring Festival, the large turnover of personnel will also increase the risk of epidemic transmission; The risk of virus contamination of imported cold chain food and other goods should also be warned under low temperature conditions. If relevant measures are well implemented, large-scale epidemic rebound will not occur.
The disease control department has made health reminders for many times, reminding citizens not to meet, gather together or visit, wash their hands frequently, wear masks and keep ventilated, maintain a safe social distance of one meter, and do a good job of personal health monitoring. In case of fever, dry cough and other symptoms, wear medical masks to go to the nearest fever clinic for medical treatment in a timely manner, and take the initiative to inform medical personnel of their travel history, contact history, etc, It is convenient for timely troubleshooting.
Data collection and sorting Hu Luxin, Wang Yuxuan, Han Qing, Jin Yuying, Chen Xuan, Hu Sixian, Zhang Yingqi, Zhang Zhe, Ban Ruijie, Ma Jiayue
Visualization | Yu Zhihong, Wang Yuxuan, Han Qing, Jin Yuying, Chen Xuan, Zhang Yingqi, Zhang Zhe, Ban Ruijie
Text | Hu Luxin, Hu Sixian, Yu Zhihong, Wang Yuxuan, Han Qing, Jin Yuying, Chen Xuan, Zhang Zhe, Ban Ruijie
Artistic Editor | Zhang Yingqi
Edited by Ma Jiayue
Overall coordination Hu Luxin and Hu Ning
China Youth Daily, produced by China Youth Network
WeChat Editor | Chen Yinan