Recently, a screenshot "About the XBB.1.5 strain reaching the top in the United States, everyone should stock up on montmorillonite powder, Zhengchang Sheng, norfloxacin " was also circulated on the Internet. On January 1, 2023, the drugs montmorillonite powder and norfloxacin mentioned in the picture were on Weibo's hot search list.
People’s Daily Health Client reporters called many pharmacies in Beijing, Shanghai, and Shenzhen, and they all said that montmorillonite powder was sold out. What is the XBB.1.5 strain? Will it cause to infect again? Do you need to stock up on medicine at home? Experts give answers. What is the
XBB.1.5 strain?
On December 30, 2022 Eastern Time, The U.S. Centers for Disease Control and Prevention released data showing that an estimated 40.5% of new coronavirus infection cases in the United States that week were caused by the highly contagious Omicron subtype XBB.1.5 strain. The infection proportion of the
xbb.1.5 strain nearly doubled that week (the proportion in the week of December 24, 2022 was only 21.7%). Scientists said that due to its extremely high "immune evasion" ability, xbb.1.5 has quickly replaced bq.1.1 and bq.1 and become the most popular strain in the United States.
Li Tong, chief physician of the Department of Respiratory and Infectious Diseases at Beijing You'an Hospital, once told reporters, "XBB still belongs to the sub-branch of Omicron , and is a recombinant variant strain of the variant strain below BA.2. It is immune to The ability of the virus to escape has been enhanced, and its prevalence in some foreign areas has led to an increase in the number of infections. However, foreign data show that its pathogenicity is no different from previous strains. "
Will XBB lead to secondary infection?
Wang Xinyu, deputy director of the Department of Infectious Diseases at Huashan Hospital Affiliated to Fudan University, said that the pathogenicity of XBB, BQ.1, and BQ.1.1 is similar to that of previous strains, but has increased immune evasion ability. Therefore, the virus caused by may spread faster than before.
If you encounter these strains, the probability of reinfection mainly depends on two aspects: on the one hand, how much overlap the strain you encounter again has with BA.5 and BF.7. If the virus keeps mutating and the cross-protection effect is reduced, infection may occur; on the other hand, it depends on the level of the person's autoantibody .
Experts: There is no need to stock up on medicines
Li Tong, chief physician of the Department of Respiratory and Infectious Diseases at Beijing You'an Hospital, once told reporters: Montmorillonite powder is a drug for treating diarrhea. Some people infected with the new coronavirus do have vomiting and abdominal pain. Symptoms of diarrhea usually resolve on their own in 1 to 3 days, and it has not been found that XBB1.5 is more likely to invade the cardiovascular and cerebrovascular systems and the digestive system. Medications for treating respiratory tract infections and digestive tract infections can be prepared appropriately, but there is no need to hoard them in large quantities. "
" The main function of montmorillonite powder is to treat the symptoms of diarrhea, not to treat viruses. Cui Song, chief physician of Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, told reporters. "Now people are rushing to buy montmorillonite powder probably out of panic, but in fact, most antidiarrheal drugs can achieve similar functions to montmorillonite powder. There is no need to focus on purchasing montmorillonite powder." "
Liu Hongwei, chief physician of the Department of Oral Mucosa, Peking University Stomatological Hospital, said that montmorillonite powder has side effects, and its particles are difficult to be excreted from the body. If left in the body, they may cause constipation. At the same time, Zheng Qing, deputy leader of the inflammatory bowel disease group of the Chinese Medical Association's Gastroenterology Branch, said that montmorillonite powder has a strong adsorption effect, and may also absorb other drugs when adsorbing pathogens , so it must be taken separately from other drugs.
Li Zhongdong, chief physician of the Pharmacology Department of the Air Force General Hospital, reminds that norfloxacin and norfloxacin are the same drug, which are commonly used to treat bacterial infections. There is no problem in adults taking them as directed by the doctor, but patients under the age of 18 are prohibited from taking norfloxacin.
source | Comprehensive People's Daily, CCTV, Shangguan News, etc.
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