Community spread caused by mutant strains is "just positive": you can win by running ahead of the virus

　　(Fighting against New Coronary Pneumonia) Community transmission caused by mutant strains is "just positive": Run ahead of the virus to win

　　Chinanews.com, Beijing, June 4th. Title: Community spread caused by mutant strains is "just positive": Run ahead of the virus to win

　　Reporter Li Chun

　　According to the epidemic data released by Chinese officials on June 4, Guangdong Province reported 9 new local confirmed cases on the 3rd.

Statistics show that since the first confirmed case on May 21, more than 90 confirmed cases have been reported in this round of new coronary pneumonia in Guangdong Province in 13 days.

　　At a press conference on May 31, according to Feng Zijian, a researcher at the Chinese Center for Disease Control and Prevention, the recent local epidemics in Guangzhou and Shenzhen were all caused by imported new coronavirus variants.

"The transmission capacity of these two viruses has been enhanced compared to before, which poses no small challenge to our existing prevention and control measures."

　　The 75-year-old Guo is the first local case in this round of the epidemic.

The investigation results showed that the infected persons caused by it included her family, Song XX who drank morning tea at the same time with her, Song XX's family and close contacts of Song XX's family.

It is reported that if Guo is considered as the first generation of cases, the virus has spread to the fourth generation in a short period of time.

　　Short incubation period, fast spread, and high viral load are the characteristics of this round of epidemics.

Zhang Zhoubin, deputy director of the Guangzhou Centers for Disease Control and Prevention, pointed out on the 31st that the fast transmission speed is the biggest difference between this epidemic and previous epidemics. The strong transmission power is reflected in "the virus can be transmitted by eating a meal and short-term indirect contact."

　　Specifically, Cai Weiping, the chief expert of the Infectious Disease Center of the Eighth People's Hospital of Guangzhou, said that the nucleic acid load of the new coronavirus detected by the patient's nasopharyngeal swab was nearly double that of the epidemic last year.

The disease progressed faster, with an average incubation period of 3.2 days, compared with 5.9 days during the epidemic last year.

　　Cai Weiping also said that the majority of patients with mild or asymptomatic infections in this round of the epidemic, the rate of severe disease is lower than last year.

"But last year, the patients went to the doctor when they had symptoms or were checked for fever. Most of the patients in this epidemic were actively screened and found that the two are not very good.

　　Since the discovery of the first local case, Guangdong Province has started a race against the mutant new coronavirus.

In the face of more virulent and faster-spreading mutant strains, prevention and control measures such as large-scale active screening, implementation of closed management, and accelerated flow detection have been continuously upgraded, and the establishment of a "firewall" before the spread of the virus is the victory in the fight against the epidemic key.

　　On May 26, Guangzhou began to carry out all-staff nucleic acid tests on the registered population and temporary residents in Liwan District, and further expanded the scope of all-staff nucleic acid tests.

As of 24:00 on June 2, a total of 7,817,600 nucleic acid samples had been sampled in the city, of which 6,829,200 were negative, and 29 people were found to be positive.

　　On May 29, Guangzhou implemented hierarchical and classified prevention and control.

All personnel in some areas of Liwan District mainly stay at home and stop all activities that are not necessary for daily life.

On June 3, Liwan District adjusted two blocks to a closed management area.

So far, Liwan District (Fangcun District) has three blocks under closed management, involving a population of 180,000.

　　On the evening of May 30, the Guangzhou New Crown Pneumonia Epidemic Prevention and Control Headquarters issued a notice requiring passengers leaving Guangzhou through airports, railways, and highway passenger stations within the jurisdiction of Guangzhou (excluding foreign transit passengers) to have a "health code" "Green code and hold a certificate of negative nucleic acid test within 72 hours.

　　In order to reduce the possible risk of infection, Guangzhou City has also decided to adjust the pace of new crown vaccination work starting on the 31st, first to orderly arrange group appointments and group vaccination for key industries and key groups, postpone individual appointments, and suspend social vaccination of new crown vaccines .

　　With multiple measures taken, the prevention and control of the epidemic in Guangdong Province has achieved initial results.

According to Zhang Zhoubin's introduction on June 1, the R0 transmission value (basic infectious index) of this round of the epidemic has declined, indicating that the recent large-scale nucleic acid screening and closed management measures have played a certain role.

But he also pointed out that the drop in R0 value only means that the spread of the virus has been curbed through existing measures, and does not mean that the virus is no longer spreading, and its infectious power is still very strong.

"The epidemic is not over, and we still cannot be taken lightly. All prevention and control measures must continue to be strengthened."

　　The mutated new coronavirus has caused community transmission in China, and the characteristics of the epidemic have undoubtedly put forward higher requirements for prevention and control work.

Huang Guanglie, director of the Guangzhou Municipal Health Commission, pointed out: "In this race against the virus, we must run a bit ahead and run faster than before in order to block the virus transmission and cut off the infection chain in time."

　　The outbreak in Guangdong Province also brought a reminder to other parts of China that human and material reserves and capacity building in epidemiological investigations and large-scale nucleic acid screening still need to be strengthened.

Of course, we must attach great importance to the "adversary" of the virus mutant strain, as Zhang Zhoubin said: "Because its spreading power will definitely exceed many of us imagine."

　　"We need to be more resolute and forceful when we take measures." In response to the new coronavirus variant, Feng Zijian pointed out that according to the new situation, the various "tools" in the "tool kit" for epidemic prevention and control must be called out in a precise and powerful manner. Adopt and implement, and strengthen and adjust the implementation intensity, scope and time.

　　The expert also reminded that the recent occurrence of local infection and transmission cases in some places indicates that the current situation of the prevention and control of the new crown epidemic is still severe. It is necessary to continue to implement various prevention and control measures in accordance with the requirements of normalized prevention and control, and keep tightening the root of epidemic prevention and control. Xian, you can't be paralyzed just because there hasn't been a local case in the country for a while.

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