What are the characteristics of new strains?What prevention and control measures are taken by Yiwu?The authoritative response of the "Zhejiang" conference conference

Author:Zhejiang Health Education Time:2022.08.07

At 15:00 on August 6, the Zhejiang Provincial Government News Office held a press conference of the 120s of the new crown pneumonia epidemic. Chen Zhiping, deputy director of the Control Center, answered reporters' questions. At the press conference, the video was also connected to the party secretary of the Jinhua Health Commission, Shi Zhifang, and Luo Xiaojun, deputy mayor of Yiwu City.

Question: Yiwu is a key area of this epidemic. What are the control measures for Yiwu? how is the progress?

Luo Xiaochao:

After this epidemic, Yiwu City mainly took the following measures:

Efficiently carry out the control of high -risk areas. Up to now, the high -risk area of Yiwu City is about 24.5 square kilometers, and the population in the area is about 248,000. By hanging banners, drones and advertisements, etc., they will guide citizens in the high -risk zone to "not leave the house" and "not out of the area." Mathered more than 4,500 party members and cadres and volunteers to carry out management services for "not leaving home and on -site services". At the same time, the shutdown of all businessmen, farmers' markets, restaurants and other places in the shutdown area, strictly prevent the spread of epidemic.

Fully exclude personnel -related risk personnel. Publishing an announcement requires those who have visited the high -risk areas to actively declare. At the same time, the personnel who have gone to the high -risk region through digitalization are used to urge them to perform nucleic acid testing and monitor home monitoring.

Continue to manage in severe places. In order to effectively block the dissemination channels of the epidemic, insist on winning the "8.2" epidemic war, as of 10 am, 5,294 closed leisure places have been closed, and "sweeping three checks" in public places strictly. Beginning yesterday, the city's bus was fully suspended to ensure that personnel reduced flow and orderly flow. All villages in the city implemented "one -door and one post" closed management. With 24 hours of nucleic acid negative proof and scanning Jinhua epidemic code.

Strive the inter -city transportation bayonet. Advocate non -righteousness, check the health code and 24 -hour nucleic acid negative proof of liberals, and strictly prevent risks.

Question: Yiwu has divided into high -risk areas. How can their living materials be guaranteed for citizens in these areas? How can I solve it if there is a need for medical treatment?

Luo Xiaochao:

For these high -risk areas, the following tasks are mainly based on their living security:

Make every effort to make the living security of residents in the district. Mid-high risk areas are implemented with a grain and oil heating package for each household. Basic packages are distributed once every 3 days. Basic packages are mainly vegetables and meats, which can meet the three-day life needs of Sankou House. More than 90,000 copies have been delivered so far.

Ensure that the market logistics is stable. Yiwu Grain and Oil Market is a food and oil distribution center in central Zhejiang. The existing rice noodles in the city's grain market can ensure 19 days, and edible oils can guarantee 17 days. In addition, there is a market in the middle of Zhejiang, and pork and vegetables can maintain a dynamic balance of supply and marketing. The large -scale commercial super inventory in the city and the smooth purchase channels can meet daily shopping needs.

Strengthen market operation dynamic monitoring. Start the "daily report" and "zero report" system of living materials, master the sales and prices of key wholesale markets and important living materials in supermarkets every day, discover abnormal conditions, and deal with it as soon as possible.

Classification guarantee measures should be taken for the needs of patients in the area. For centralized isolation points, high -risk areas, mid -risk zones, and home health observations, the three types of personnel in the three types of people with yellow code see the normal needs to see a doctor. According to whether it has the "top ten symptoms" of new crown pneumonia, a negative voltage ambulance or an epidemic prevention of the local town streets will be arranged. The control office arranges a closed loop of vehicles to a designated hospital for treatment and returned.

In addition, services such as chronic diseases for chronic diseases through WeChat Tower Group, guidance and psychological guidance during pregnancy during pregnancy are provided; the establishment of community medical recycling protection teams, providing on -site services such as substitutions and other capabilities, and required to go out to provide evaluation, connecting warm heart, etc. Convenience services.

Question: Since this round of epidemic, Jinhua has been increasing every day, and the number is large. What is the current situation?

Shi Zhifang:

Through gene sequencing, the virus that caused the epidemic was the new mutant strain (BA.5.2 evolution branch). Experts believe that the mutant strain has the characteristics of stronger infectivity and faster transmission. Since the epidemic occurred on August 2, it has developed rapidly. As of 12:00 on August 6, there were 213 patients with a positive infection from the epidemic. 169 cases of Yiwu) were sent to the designated hospital and square -cabin hospital for isolation treatment, and the current situation is stable. From time to time, 4 cases were reported on August 2, 48 cases were reported on August 3, 56 cases reported on August 4, 93 cases were reported on August 5th, and 12:00 on August 6th example. From the perspective of discovery: the new social screening case has gradually decreased. In the past two days, most of the new infected people occur in the isolated staff, and the situation gradually improves.

Since the epidemic, Jinhua City has emergency investigation and control of key groups such as infection, secret, sub -densely connected, and high -risk regional personnel, and improves nucleic acid detection, flow traceability, and isolation and transportation efficiency. As of 12:00 on August 6, the epidemic situation started. A total of 1,8837 people have been inspected and controlled, and 2,511 people are connected in the secondary secrets. From August 2nd, a total of 9.29 million nucleic acid sampling testing was launched. The current prevention and control work is being carried out in an orderly manner.

In the next step, we will continue to go all out to go, continue to attack, and be scientific and accurate.

Accelerate the transfer of transfer, refine the unit, increase the power, and optimize the marshal, so as to be densely connected, secondary, and key personnel should be separated and fast.

Improve the detection efficiency of nucleic acid, optimize the detection process of nucleic acid, use high -quality nucleic acid test as the starting point, and fully fish for dry infection.

Accelerate the traceability of the flow, and strive to find the control, second -secret, and key high -risk people in place, and achieve full coverage of scenes and personnel.

Effectively implement the anti -overflow measures, and promote personnel information push in time to ensure that the risk personnel are controlled and controlled.

Strengthen the "three districts" management and control services, respond to citizens' concerns in a timely manner, do a good job in the demand for people's livelihood, purchase medicines for medical treatment, and temporarily assist in assistance and assistance.

Actively carry out the establishment of an epidemic -free unit and keep the "small door" at the grassroots level.

Question: The epidemic in Yiwu and other places was caused by the new strains of Omikon. What are the characteristics of this new strain? Is it useful to wear a mask and wash your hands frequently?

Chen Zhiping:

After the Yiwu epidemic occurred, the Provincial Centers for Disease Control and Prevention carried out gene sequencing in a timely manner, confirming that the Yugu epidemic was the mutant strain of Omikon (BA.5.2 evolved branch, which belonged to the sub -branch of the BA.5 evolution branch).

As of August 5, 2022, statistics from the Global New Crown Virus gene sequencing samples obtained by WHO show that BA.5 has been detected in more than 100 countries/regions. At present, BA.5 has replaced BA.2 to become the world's main popular strains.

The main characteristics of this mutant strain are:

one. Stronger communication ability and faster communication speed

BA.5's communication ability has increased significantly compared with the previous strains. The basic regeneration (R0) measures the dissemination capacity of Omikon BA.5 (the R0 value refers to no or few public health measures intervention intervention In the case, when everyone has no immunity, a infected person spreads the virus of others.). In the case of not being immune, the original R0 value of the original new coronary virus in the early dissemination was about 3.3, the R0 value of the deera mutant strain was about 5.1, and the R0 value of the early mutation strain BA.1 in the early stage was about 9.5. The R0 value of Omikon BA.2 is about 13.3, and BA.5 has a more growth advantage than BA.2, and the R0 value may reach 18.6. In the epidemic of Yiwu, in just 4 days, the number of infected people reported more than 200 cases in just 4 days.

two. BA.5 has a stronger immune escape ability

Compared with the previous strains, Omikon BA.5 has a more obvious immune escape phenomenon. Studies have shown that BA.1 and BA.2 infected with unprepared vaccination and vaccination have neutralized effects on BA.5. Compared with the previous mutant strains, there is a decline in varying degrees. For the epidemic caused by the Omikon BA.5 mutant strain, because the mutant strain has stronger infectious and immune escape, it needs to pay more attention. However, from the current situation, its pathogenic forces have not been significantly enhanced. The prevention and control practice of several recent BA.5 mutant -plant epidemic in China also reminds that existing prevention and control measures are still valid. The BA.5 mutant strain still belongs to the Omeck Rong mutant strain. The propagation method is still mainly droplet transmission and contact dissemination. The most important way to prevent and control is to block the transmission pathway and protect it. Mask, hand hygiene and other protection, maintaining social distance, vaccination of new coronary virus vaccines, etc. In addition to the above -mentioned personal prevention and control measures, in addition to the above -mentioned personal prevention and control measures, it is promoted that in accordance with the requirements of normalized prevention and control in the area, it actively implements regular nucleic acid testing Public prevention and control measures such as active scanning sites.

I would like to remind everyone here that one of the counties who have been to high -risk areas in the middle of the recent high -risk areas or local epidemic reports must actively report to the community and do a good job of personal health management and nucleic acid testing according to the requirements of the community; nucleic acid testing; Negative, but if you have discomfort, you must actively detect nucleic acid detection every day until the symptoms disappear or return to the local area for more than 7 days. You can perform the frequency of nucleic acid screening in the area. The second is those who have not completed the entire process of vaccination of the new crown pneumonia, especially the elderly people, to actively complete the vaccination work of the vaccine.

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