Recently, XBB strains have attracted attention
The currently popular strains in my country are mainly BA.5.2 and BF.7
However, dominant strains such as BQ.1 and Will
trigger a new wave of popularity?

Shanghai Rumor Refuting Platform stated that after verification, the screenshot exaggerated the pathogenicity of XBB.1.5, and it does not rule out that people with ulterior motives use it to promote products . Many doctors have warned not to take the montmorillonite powder, norfloxacin and other drugs mentioned in the screenshot at will. What is the
XBB strain?
Xu Wenbo, director of the Institute of Virology of the Chinese Center for Disease Control and Prevention, said that BQ.1 and XBB are new mutant branches of Omicron. It has become the dominant strain in some European and American countries, and is mainly characterized by increased transmissibility and immune evasion ability of . Is the virulence of the
XBB strain increased? The pathogenicity of
BQ.1 and XBB is not significantly different from , Omicron, and other series of mutant strains, and the severity and mortality rates have not increased in countries where BQ.1 and XBB are prevalent..
In the past three months, my country has monitored the introduction of BF.7, BQ.1, and XBB. However, BQ.1 and XBB have not yet formed a dominant spread in our country. The dominant spread is still BA.5.2 and BF.7.
After "Yangkang", will be infected with the XBB strain again?
Li Tong, chief physician of the Department of Respiratory and Infectious Diseases at Beijing You'an Hospital, once said that the immune evasion ability of the current XBB strain has been enhanced, which is different from the BA.5 popular in my country. After is infected with BA.5, the level of protection decreases after a period of time. When encountering a strain with strong immune evasion ability, the risk of reinfection will increase .
However, reinfection mainly occurs in some people with low immunity , immune function people with normal immune function have a relatively small risk of reinfection in a short period of time, and the symptoms after infection are usually milder than the first time. Can the
XBB strain cause diarrhea?
Regarding the symptoms of vomiting and diarrhea caused by the XBB strain reported online, Li Tong once said that some people infected with the new coronavirus do have symptoms of vomiting and diarrhea, which usually resolve on their own in 1-3 days. It has not been found that the XBB strain is more likely to invade the cardiovascular and cerebrovascular systems and digestive system . Medications for treating respiratory tract infections and digestive tract infections can be properly prepared, and there is no need to stock up in large quantities.
Are the medicines and products recommended online reliable?
From the introductions of XBB.1.5 by various parties, it is not difficult to find that the description of XBB.1.5 in the screenshots posted online is not accurate and is suspected of exaggeration, misleading, and causing anxiety. The seemingly thoughtful recommendations from relevant people in the posts are more mysterious - not only medicines and products appear, but also specific product brands. Some netizens speculated that it cannot be ruled out that the netizen who wrote and distributed the post wanted to use it to promote related products.
Regarding the effects of related drugs and products, the Shanghai Rumor Refuting Platform has compiled suggestions and opinions from authoritative institutions and professionals for public reference -
First, do not overdose on montmorillonite powder to avoid constipation.
Montmorillonite powder can indeed treat diarrhea and has an astringent effect with relatively minor side effects. However, its particles are difficult to excrete from the body, and if taken in excess, it may cause constipation.
He Yuqi, an expert in the gastroenterology department of Beijing Chest Hospital, said that if diarrhea symptoms occur after being "yang", montmorillonite powder, berberine, and probiotics can be used appropriately to improve intestinal flora, but at the same time, attention should be paid to replenishing water and electrolytes to prevent the occurrence of electrolyte imbalance.Especially during the treatment process, attention should be paid to a reasonable diet. A reasonable combination of vitamins , folic acid , and trace elements can improve the body's immunity and help patients recover as soon as possible.
Secondly, norfloxacin can treat diarrhea caused by bacteria , but it has no effect on diarrhea caused by virus ; norfloxacin can hinder bone growth and development, and minors under 18 years old are prohibited from taking it .
If symptoms of diarrhea occur, find out the cause before taking medicine. Do not use medicine randomly.
Third, there are many ways to replenish electrolytes, and there is no need to purchase additional electrolyte water.
Electrolytes refer to inorganic salts, proteins and other substances that exist in ionic form in body fluids, mainly including potassium ions , sodium ions , chloride ions , calcium ions , magnesium ions, etc. During the fever, water and some electrolytes may be lost due to excessive sweating and diarrhea. In severe cases, it may lead to dizziness, fatigue, etc. In this case, appropriate electrolyte supplementation is helpful to maintain the stability of the patient's internal environment.
However, you do not necessarily need to choose functional drinks to replenish electrolytes. Potassium-containing foods such as seaweed and spinach, and light salt water can all be used to replenish electrolytes appropriately. If you can eat normally when you have a fever, pay attention to a balanced diet and drink water, there is no need to supplement electrolytes; if you do not eat all day while perspiring or have severe diarrhea and vomiting, you need to pay attention to supplementing electrolytes.
Fan Zhihong, associate professor at the Department of Nutrition and Food Safety, School of Food, China Agricultural University, Fan Zhihong said that residents can make their own electrolyte-replenishing drinks at home, such as tea, coconut juice, etc. Tomato soup, white radish boiled chicken soup and other soups can also replenish electrolytes.
Fourth, take a reasonable look at the role of probiotics .
Appropriate supplementation of probiotics during diarrhea can help improve intestinal flora and relieve symptoms. The State Food and Drug Administration recommends that when regulating intestinal flora disorders, commonly used probiotics include Bifidobacterium triple live bacteria, Bacillus subtilis double live bacteria, Bacillus licheniformis live bacteria, Saccharomyces boulardii powder, etc.
However, the public should be careful that some businesses exaggerate the role of probiotics and advocate the use of probiotics to prevent and treat COVID-19 infection. Currently, there are no studies showing that probiotics can effectively fight COVID-19 infection.
Source: Shanghai Market Supervision, Consumer Guide Magazine