What is the "7 · 20" epidemic culprit BA.2.38?Here

On July 27, Sichuan CDC issued a health reminder, which pointed out that the "July 20" related epidemic in Sichuan Province was virus gene sequencing VOC/OMICRON BA.2.38. Fan Shuangfeng, director of the Emergency Office of the Chengdu Center for Disease Control and Prevention, introduced that the first case of the "July 20" epidemic was particularly contagious, and dozens of people were contagious in a short period of time.

So, what is the origin of the Omikon mutant plant BA.2.38? How should we protect more effective? Today, Zong Zhiyong, the director of the Infectious Disease Center of the West China Hospital of Sichuan University, and Zhao Feifei, the attending physician, answered questions for everyone.

Be vigilant

Mik Rong mutant plant BA.2.38 may be more infectious

How did the Omikon mutant plant BA.2.38 come from? According to experts, according to the evolution of the virus strains, Omikon mutant strains can be divided into many branches -including BA.1, BA.2, BA.3, BA.4, and BA.5. These branches can further subdivide different branches according to evolutionary relationships. BA.2.38 is the evolution branch of BA.2.

Although it can be determined that the ownership of BA.2.38 of Omikon is currently determined, the current research on BA.2.38 is very lacking, and its understanding of it is still limited.

According to news reports in India in June this year, according to the genome sequence of the global database GISAID, BA.2.38 became the main popular strain in India, accounting for about 30%of the new crown virus strains in the same period.

According to an Indian study that has not been officially published, most of the 116 BA.2.38 infected people have mild symptoms. According to local standards, they do not need to be hospitalized. It is prompted that BA.2.38 is weak.

The report mentioned that there was no formal study that BA.2.38 has a growth advantage than its pro -agency BA.2, suggesting that the incubation period may be shorter and more contagious.

Whether BA.2.38 has a stronger escape (escape may cause the vaccine part to fail) to be studied, but the vaccine effect not only shows that the risk of infection is reduced, but also to effectively reduce the risk of severe illness after infection.

Pay attention to precautions

The most effective protection measure is still four -piece epidemic prevention

1. Wear a mask

Wearing a one -time medical mask, medical surgical mask or a higher protective mask.

Here is a key point for everyone. Generally, medical masks include three layers, namely the inner, outer layer and middle filter layer. The thinner masks often do not have three layers, which cannot achieve the protection effect.

When wearing a mask, do not exceed 8 hours when wearing a mask; and once the mask becomes humid, change the mask immediately.

In addition to wearing a mask in a closed place, when it is located in outdoor places such as open -air squares, theaters and parks, we also need to wear masks.

Remove your ear when you throw a mask, do not touch the front of the mask. After removing the mask, immediately throw it into the closed trash can and perform hand hygiene.

2. Hand -hygiene

When washing your hands, in addition to ensuring time, you should also pay attention to methods, such as rubbing hard, paying attention to the thumb and fingertips, and using hand sanitizers.

Under normal circumstances, cleaning the hands with water+cleaner (the first choice, followed by soap, soap) is cleaned more thorough; when the hands do not have obvious dirt and it is not convenient to wash it, it can be cleaned with a scrubbing solution.

Wipe your hands directly with alcohol, which can easily cause health problems such as skin dryness. It is not recommended to use it often.

The principle of whether to wash your hands is not to go out, but before you touch the "susceptible" part, you must remember to wash your hands after contacting the pollution items.

After washing your hands, it is recommended to wipe your hands with a towel instead of a towel to clean.

Third, avoid the crowd of gathering as much as possible

Reduce going out and avoid dense places where people are concentrated.

Do not exceed 10 people during family dinner, minimize the number of dinner people and shorten the time of dinner.

Pay attention to ventilation in the room. Pay attention to the use of public chopsticks during the meal. When you stay in the hotel, you must pay special attention to ventilation.

Fourth, vaccination

A large number of clinical research evidence at home and abroad shows that the effects of new crown vaccines are very significant for prevention of disease prevention, severe illness, and death prevention, and strengthening immunity can further improve the effect of protection.

At present, patients with tumors, hypertension, diabetes, and slow pulmonary resistance, as long as the health status is stable and the drug controls well, they are not used as vaccination taboos for new coronary virus vaccines.

Of course, there are several suggestions as a taboo for vaccination.

① Severe allergic reactions occurred during vaccination, such as allergic shock and throat edema.

② Because various diseases are in the fever stage, such as influenza, pneumonia or other diseases.

③ The acute attacks of some chronic diseases, such as tumor patients are doing chemotherapy, hypertension patients have high blood pressure, and some nervous system diseases are onset.

④ Because of various serious diseases, life has entered the end.

⑤ Women cannot be vaccinated during pregnancy.

It is recommended that you consult a professional doctor according to the specific circumstances of your personal situation.

Chengdu Daily Jinguan News reporter Yang Su's main content source source Huaxi doctor He Qixie interns in the internship Editor Lu Yarui

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