Nanjing epidemic rebounds Zhang Boli reminds "to find out the transmission chain as soon as possible"
◎Reporter Jin Feng
"Domestic must prepare in advance the plan to deal with the possible new round of delta strain transmission epidemic, and make adequate reserves and coordinated deployment mechanisms for isolation points, designated hospitals, medical teams, Chinese and Western medicine equipment, etc. in advance." These days , Zhang Boli, academician of the Chinese Academy of Engineering and honorary president of Tianjin University of Traditional Chinese Medicine, is continuously paying attention to the trend of the epidemic.
On the evening of July 27, Zhang Boli said in an exclusive interview with a reporter from Science and Technology Daily: “It is recommended to strengthen the transmission and traceability work. Based on the past experience of Wuhan and Shijiazhuang epidemic prevention and control, as soon as possible to find out the epidemic transmission chain is an important foundation for achieving the knowledge and control of the epidemic. ."
At present, cases related to the local epidemic in Nanjing have also been found in Suqian, Jiangsu, Maanshan, Anhui, Wuhu, Anhui, Shenyang, Guangdong, Zhongshan, Mianyang, Sichuan, and Zhuhai, Guangdong.
Although Nanjing has not notified the spread of the epidemic as of the press time, according to the data released by the press conference on the prevention and control of the new crown pneumonia epidemic held in Nanjing on July 29, from 0:00 to 24:00 on the 28th, Nanjing added a new local area. The number of confirmed cases was reduced to 18, the lowest in 4 days.
From the 25th to the 27th, the newly confirmed local cases in Nanjing were 38, 31, and 47 respectively.
It is recommended to continue to strengthen the promotion of vaccination and strive to achieve a universal vaccination rate of more than 80% by the end of 2021
"This epidemic shows that there are still loopholes in domestic epidemic prevention, and we should be highly vigilant, and check for missing vacancies. Based on the current situation, the epidemic in Nanjing is spreading widely and the infected population is more complex, and prevention and control work cannot be taken lightly." Zhang Boli believes that the current Nanjing headquarters The epidemic has not yet been known and controllable, and the transmission chain has not yet been fully investigated and blocked. Whether there is more widespread transmission is uncertain, and prevention and control have reached the most critical and urgent stage.
It is worth noting that as of 24:00 on July 28, Nanjing had reported a total of 171 confirmed cases in Nanjing, of which 78 were mild, 86 were normal, and 7 were heavy.
"There are fewer severely ill patients in this round of the Nanjing epidemic. It can be speculated that the vaccine has played a role in reducing the rate of infection." Zhang Boli believes.
On June 25 this year, Zhong Nanshan, an academician of the Chinese Academy of Engineering, in an interview with the media, specifically responded to the question of whether the domestic vaccine is useful for the delta variant.
"Laboratory results prove that vaccination with domestic vaccines has a protective effect on the population." Zhong Nanshan said. The preliminary analysis shows that the prevention effect of completing the whole course of immunization is obvious. The vaccine is effective in preventing infection of close contacts by 69% and preventing the development of pneumonia. It is 73%, and the effect of preventing severe illness is over 95%.
“Guangdong Province’s observations show that close contacts who have been vaccinated with two doses have nearly 60% protection against disease and nearly 80% protection against pneumonia. No patient has become severe or critically ill.”
Zhang Boli believes: "Vaccination can control the rate of serious disease, and the protective effect has been shown." He suggested that the promotion of vaccination should continue to be strengthened, "We must speed up the vaccination rate for people aged 0-18, and strive to achieve a universal vaccination rate by the end of 2021. More than 80%, and the vaccination rate of special industries and groups such as medical, aviation, port, cold chain, etc. is more than 90%, forming an immune barrier and striving for the initiative to open up international exchanges."
It is recommended to expand the team of disease control traceability personnel as soon as possible and focus on integrated traditional Chinese and Western medicine treatment
At present, the Delta strain has appeared in at least 104 countries and regions, and it has been marked by the World Health Organization as one of the new coronavirus variants that need attention.
WHO predicts that the delta strain will soon become the dominant strain of the new coronavirus in the world.
However, the issue of virus traceability is a complex scientific issue that involves experts in many disciplines and many different fields, and it is also a world problem.
Zhang Boli suggested that the team of disease control and traceability personnel should be expanded as soon as possible, and if necessary, professional disease control teams of surrounding provinces and cities can be assisted to find out the transmission chain of the epidemic as soon as possible, early detection, isolation and treatment, to block further spread of the epidemic.
"At the same time, the mutated virus has caused many asymptomatic and mild infections, which has increased the difficulty of traceability. It is better to use big data information technology and Nanjing Lukou Airport information records to conduct a large-scale investigation, and multiple times for passengers with history of entering and exiting Lukou Airport. Screening can appropriately extend the observation period."
Since May this year, Delta strains have been making waves in Guangzhou, Ruili and other places.
In the two local epidemics that rebounded, Chinese medicine played a role. Eventually, the hospital-infected patients of the Guangzhou epidemic were cleared, and there was no death.
"The existing prevention and treatment experience in Guangdong, Yunnan and other provinces and cities shows that integrated traditional Chinese and western medicine is still effective for patients infected with mutant viruses. Traditional Chinese medicine focuses on the clinical manifestations and symptoms of people infected with the virus. The emphasis is on regulating the immune function of the human body. However, we must pay attention to early treatment and comprehensive treatment, and integrate treatment and rehabilitation to achieve satisfactory results." Zhang Boli said.