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Will the antibodies disappear? Someone has been infected with the new coronavirus three times, and the symptoms are getting worse and worse! Zhang Boli: The new coronavirus has mutated
According to CCTV News cited in the “Modern Daily” report from Bangladesh, 25 people in Bangladesh had secondary infections of new coronary pneumonia, and one person had three new coronary pneumonia infections, and most of them were medical personnel. When they were infected the second and third times, their bodies were weaker and symptoms such as fever, body aches and cough were more apparent than when they were first infected.
Compared to the first two infections, the body is weaker.
Nihal Rojon Das, a doctor at the Martyr Shakhlavadi Hospital in Bangladesh, is currently the first case of COVID-19 in Bangladesh. He told the media that in the second week of April this year he felt fever and body aches, so he took a sample test to detect a new coronary pneumonia. The test report on April 18 was positive. At that time, the symptoms were mild, after 9 days of isolation at home, he was tested again and the result was negative.
A garment factory in Bangladesh under the epidemic (Source: Xinhua News Agency)
In the last week of June, Nihar again had symptoms of a new coronary pneumonia. The sample test report of July 2 confirmed that he was infected with a new coronary pneumonia for the second time. This time, he had no appetite for food and his fever and body aches were more severe than the first infection. They isolated him at home, taking antibiotics and paracetamol to lower his fever. On July 21, his sample test report came back negative. After resting at home for seven days, he returned to work at the hospital.
In the second week of October, Nihar again had symptoms of a new coronary pneumonia. On October 17, the sample test report was positive again. Their body temperature fluctuates between 38.3 and 38.9 degrees Celsius, accompanied by body pain, coughing, and shortness of breath. Compared to the previous two infections, the body is weaker.
The scientific director of the Bangladesh Epidemiological Disease Research and Control Institute, Dr. Alam Gir, said that within six months after the first infection with the new coronavirus, the virus can remain inactive in the patient’s body and cause a second infection of the patient. In fact, this situation is very worrying. The specific situation needs further study.
Russian scientists deliberately infected with new coronavirus again
Conclusion: “herd immunity” is useless
According to the Global Times quoted in the British report “Daily Mail” on the 28th, the Russian scientist Alexander Chepurnov (Alexander Chepurnov) is 69 years old. In February of this year, he contracted the new corona virus for the first time while skiing in France.
After recovering from his home in Siberia, Chepurnov and his team at the Institute of Clinical and Experimental Medicine in Novosibirsk began a study of antibodies against the new coronavirus. To test the level of antibodies, unprotected patients were deliberately exposed to new crowns to allow themselves to be reinfected with new crowns.
Alexander Chepurnov (Alexander Chepurnov)
Cheplnov said they studied the behavior and strength of the new corona antibody and how long the antibody remains in the human body, and found that the level of antibodies will drop rapidly. Cheplnov concluded based on his case that there is little hope of achieving “herd immunity”. The new coronavirus will always exist, although the vaccine can produce immunity, it may be temporary.
A study led by the British government showed that the number of people in the UK who have antibodies to the new coronavirus is much lower than at the peak of the first wave of the epidemic. The protection that antibodies provide against the new crown is short-lived, and people can become infected again a few months after the first recovery.
British researchers found that “new corona antibodies will disappear”
The Imperial College of Technology recently announced a study that found that antibodies to the virus carried by patients with new coronary pneumonia after recovery will gradually disappear over time. Some US media have described this conclusion as a “blow to the head” for critics of “herd immunity”; However, Chinese researchers made similar findings as early as June and published them in British magazines.
The study found that antibodies to the new coronavirus decreased after (the patients) were infected, raising questions about the “herd immunity” theory. Screenshot: CNBC
The US Consumer and Business News (CNBC) reported on the 27th that Imperial College London’s “Real-Time Monitoring of Community Communication” project published research results that have not yet been peer-reviewed. From June 20 to September 28, researchers went through 3 rounds of testing to collect and track changes in antibodies to the novel coronavirus from approximately 365,000 adults across the UK.
The results showed that in June, 6% of the participants were found to carry antibodies. After the relaxation of epidemic prevention measures in the UK and the second wave of epidemics, only 4.4% of the participants had antibodies when they were tested in September. In 3 tests in 3 months, the number of people carrying antibodies was reduced by an average of approximately 26.5%.
Among them, people of all ages have shown a tendency to decrease antibodies, with the sole exception of medical workers. This can be due to severe or repeated contact with the virus. The most obvious reduction in the number of people carrying antibodies is those over 75 years of age and suspected patients, and the least obvious are young people between 18 and 24 years of age and confirmed patients. This means that the antibody response is related to the age and severity of the disease.
Zhang Boli: the new coronavirus has mutated
According to the Wuhan Evening News, on October 26, Zhang Boli, a “people’s hero,” an academic at the Chinese Academy of Engineering and president of the Tianjin University of Traditional Chinese Medicine, returned to Wuhan and said that preventing the Autumn and winter epidemic should not relax and that the complexity of the new corona pneumonia epidemic should be fully aware.
On the one hand, we have a lot of experience in dealing with the epidemic. For example, in the prevention and control of the new outbreak in Beijing, we quickly trace the source of infection, implement precise prevention and control, and implement an integrated treatment of traditional Chinese and Western medicine for diagnosed patients; Dalian quickly assessed and made a more accurate display. All right; the census of more than 10 million people in Qingdao was completed in five days, reflecting the improvement in testing capabilities. From a patient management perspective, the reduction in severe disease and lower mortality means that we have a better understanding of the disease.
On the other hand, although the domestic epidemic is mainly spread out at multiple points, it is necessary to be alert to the overlapping risks of new coronary pneumonias and influenza. In addition, the virus has mutated, its infectivity has increased but its toxicity has weakened, and there are more and more asymptomatic infections, which will put greater pressure on prevention and control.
The daily number of deaths from the new crown in Europe increases by almost 40% per week
According to a report from the British Broadcasting Corporation (BBC) on the 27th, the World Health Organization (WHO) said that compared to the previous week, the number of deaths from the new crown in Europe has increased by almost 40% .
WHO spokeswoman Margaret Harris said France, Spain, the United Kingdom, the Netherlands and Russia accounted for the majority, an increase of a third. He warned: “The hospital’s intensive care unit is now full of critically ill patients.”
Russia reported 320 deaths from the new crown in a single day, bringing the death toll to 26,589. The number of new cases of corona pneumonia in Russia ranks fourth in the world, after the United States, India and Brazil. On Tuesday alone, Russia recorded 16,550 cases of infection and authorities are now requiring people to wear masks in all crowded places.
On Tuesday, the cumulative number of deaths from the new crown in Austria surpassed 1,000.
The death toll in Italy is also rising dramatically, with 221 deaths announced in the last 24 hours. Although the number of infections in Italy is also increasing dramatically, reaching nearly 22,000 in the past 24 hours, officials say testing has also increased. On Monday night, protests were held in cities and towns across Italy to oppose the new round of restrictions.
In Belgium, even if doctors are infected with the new coronavirus, they still have to keep working because the country’s health system is in danger of being overwhelmed.
On Tuesday, WHO spokeswoman Margaret Harris said: “Across Europe, we have seen a sharp increase in the number of confirmed cases and deaths, which is really concerning.” He said that compared to the previous week, every day The number of cases has increased by a third, while the number of deaths per day has increased by “almost 40%”. He warned: “Despite better management of hospital capacity, hospitals in some countries are rapidly overcrowded.”
The spokesman said that due to the “lag”, it will take two weeks to analyze the effectiveness of the new restrictions implemented by some European countries. She said: “We will see a reduction in cases, but not overnight.”
EU leaders say the EU medical system will be at risk of being “overwhelmed”
On the night of the 29th local time, the President of the European Commission, Von der Lein, said in Brussels that unless the governments of the EU member states take immediate action, the EU medical system will run the risk of get crushed by the new corona virus. On the same day, EU leaders held a special summit via video to jointly discuss strategies to deal with the new corona epidemic. Von der Lein made the above statement at a press conference held after the meeting.
Von der Lein said that the European Commission has allocated 220 million euros to finance the cross-border transfer of new coronary patients within the EU, thus reducing medical pressure on the member states most affected by the epidemic. “The leaders of the EU member states agreed that virus detection and case monitoring are the two key tasks for the prevention and control of the current epidemic. At the same time, all countries have pledged to further strengthen plus data sharing, especially timely sharing of accurate epidemic information with the European Centers for Disease Control and Prevention. Data, “said Von der Lein.
Von der Lein also revealed that EU leaders have reached consensus that once a vaccine is available, all 27 EU member states will obtain it at the same time and under the same conditions. each country will be determined according to its population.
Source: CCTV News Client, Global Times, Wuhan Evening News, Observer.com, Daily Economic News
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