What is the probability of going from "Yang Kang" to "Wang Chongyang"? Several facts about repeated infection

Recently, with the optimization and adjustment of national epidemic prevention and control measures, people have become more calm and calm in the face of the new coronavirus. Jokes such as "Yang Guo", "Yang Kang", "Wang Chongyang", and "Baojuan My Voice" have been widely circulated on social networks.

However, it is not easy to be the first person responsible for your own health. The Omicron variant is highly contagious, and many people are concerned about the problem of secondary infection. In this regard, NetEase Health has sorted out some key information.

1. Will it happen again after having had an erection once?

Secondary infection cannot be completely avoided

COVID-19 secondary infection (reinfection) refers to a situation where a person is infected with the new coronavirus and then becomes infected again after recovery.

After being infected with the new coronavirus once, the immunity formed by the human body will play a certain protective role. However, Omicron may quickly mutate into new sub-branches with stronger immune escape ability, and those who have recovered cannot completely avoid secondary infection .

According to current research data, the probability of reinfection within a short period of time after being infected with Omicron is low. The probability of reinfection is also related to the virus mutation. The more obvious the virus mutation, the greater the probability of reinfection .

2. How long will it take for a secondary infection to occur?

The probability of secondary infection within 3 to 6 months is quite low

According to Health Times, Li Dongzeng, chief physician of the Comprehensive Infection Department of Beijing You'an Hospital and medical expert of Xiaotangshan Fangcang Hospital, said that the risk of reinfection after infection is mainly related to one's own immunity and the interval time.

Li Dongzeng said that after being infected, there is no need to worry about reinfection within six months. The risk of reinfection is relatively high for the elderly and infants, but it is basically three months to six months after infection . For young people and people with normal immune function, the risk of reinfection within the first six months is very low.

Experts from the State Council’s Joint Prevention and Control Mechanism stated that foreign statistics show that the probability of a second infection within three to six months after being infected with Omicron, regardless of whether one has symptoms or not, is quite low, and most people will not be reinfected with Omicron for a considerable period of time.

In March this year, a study in Qatar found that previous infection has a certain protective effect against reinfection. The study showed that 270 days after infection, the protection against reinfection with different variants of the virus was 90.2% for the Alpha strain, 85.7% for the Beta strain, 92% for the Delta strain, and 56% for the Omicron strain.

Image source: The New England Journal of Medicine

3. Will the symptoms become more severe after repeated infection?

Most people won't

There is no conclusion that repeated infection will lead to more serious clinical consequences. Judging from the current cases, even if some patients have a tendency to have worsening symptoms when they are repeatedly infected, the proportion is very low. The pathogenicity of the Omicron virus is weakening, and the probability of severe illness is very low whether it is the first infection or reinfection.

In general, the risk of reinfection and the symptoms after infection depend on many complex factors, including virus mutation, vaccination status, underlying physical conditions, etc.

NetEase Health reminds everyone that "Baojuan my throat" is a joke, but it is still not very pleasant after all, and after infection, it may be transmitted to special groups such as the elderly, children, pregnant women, and patients with underlying diseases at home. Therefore, it is still necessary to do a good job of daily protection, try to get tested as late as possible, and try to avoid secondary infection.

Source: Global Times, Xinhua News Agency, CCTV News, New England Journal of Medicine