During the New Year's Day holiday, many places in my country are at the peak of the COVID-19 epidemic. Before the tired medical staff and the tired infected people had time to take a break, news suddenly came of the attack of the new mutant strain XBB.1.5 of the COVID-19 !
It turns out that according to media reports, the latest monitoring data from the U.S. Centers for Disease Control and Prevention shows that in the week ending December 31, 2022, the infection rate of the XBB.1.5 strain nearly doubled from the previous month, making it the most prevalent strain in the United States. It is reported that about 75% of confirmed cases in the northeastern region of the United States are infected with XBB.1.5.
The XBB.1.5 strain is coming in force and has landed in Shanghai.
According to media reports, 30 Omicron subtype strains have been detected in Shanghai this round, including the main strain XBB.1.5 in the United States. These samples came from new coronavirus patients in Shanghai.
was randomly collected from November 23 to December 22 this year. gene sequencing confirmed 30 known Omicron subtype strains, of which the BQ.1 family and XBB family, which are widely popular in Europe and the United States, account for more than 1/3! However, the vast majority of these cases are imported cases from abroad and are under closed-loop and individual management. Therefore, they have not caused large-scale local transmission of the BQ.1 family and the XBB family. Will the
XBB.1.5 strain trigger a new round of epidemics?
Domestic and foreign experts predict that XBB.1.5 will become the main strain in the world in a short period of time. Close attention needs to be paid to whether it will trigger a new round of epidemics in our country. It is also necessary to closely monitor the prevalence of this strain. There are two main reasons:
First, "Tests show that after at least two doses of vaccination, In the case of the mRNA vaccine, breakthrough infection with BF.7 cannot induce high-level neutralizing antibodies against XBB.1 and XBB.1.5, making it difficult to prevent reinfection. "After infection with the "Northern strain" BF.7 Yangkang, there will be a chance of reinfection with XBB.1 and XBB.1.5, that is, cross-immunity between BF.7 and XBB.1 and XBB.1.5 is ineffective.
Second, "The latest research shows that the immune evasion ability of XBB.1.5 is equivalent to that of XBB.1, but the key mutation F486P gives it a higher binding affinity for the human ACE2 receptor - ACE2 can be regarded as the "gate" for the new coronavirus to enter human cells, which means that XBB.1.5 is more likely to infect the human body." XBB.1.5 is more contagious than XBB.1. How to deal with
? Is it necessary to stock up on antidiarrheal medicine?
While the news about the new mutant strain XBB.1.5 was flooding the screen, the anti-diarrheal drug Montmorillonite Powder was hotly searched. This is a very common anti-diarrheal drug, and most experts said there is no need to rush to buy it.
First of all, XBB is a substrain of Omicron . Some people do develop diarrhea after infection. However, it is currently believed that XBB is not specialized in the gastrointestinal tract. Many experts believe that compared with our probability of contracting Omicron fever, the incidence of diarrhea is much lower, so there is no need to rush to buy antidiarrheal drugs for the time being.
Secondly, the real first choice after diarrhea is not montmorillonite powder, but oral rehydration salts , and I think there is no need to stock up on a little spare.
The author once popularized oral rehydration salts, and I will share it with you again:
Oral rehydration salts: the best formula of "sugar saline"
Oral rehydration salts are used to treat mild and moderate dehydration caused by acute diarrhea. It is the first choice drug recommended by the World Health Organization . It is not just as simple as a bag of salt. Its ingredients also contain a certain proportion of glucose, sodium bicarbonate and potassium chloride. For mild to moderate diarrhea, its efficacy is equivalent to that of an intravenous drip.
Oral rehydration salt is the signature weapon of pediatricians to deal with viral diarrhea . Especially when it comes to rotavirus gastroenteritis, virus will invade the small intestine, resulting in less water absorption, leading to watery stools, and prone to dehydration (dehydration should be considered if diarrhea is not urinated within 4 hours). Children should be given oral rehydration salt in a timely manner. Oral rehydration salts can be said to be the best-formulated "sugar salt water". The sugar in it can ensure the full absorption of water and sodium. If dehydration is not serious, you can give your child more light apple juice.
Notes: Improper application of oral rehydration salts will aggravate the condition and even lead to adverse consequences. The reason is that the gastrointestinal mucosa of patients with indigestion and acute gastroenteritis has inflammatory edema and poor absorption function. Taking a large amount of rehydration salts quickly in a short period of time is not only difficult to absorb, but also accelerates gastrointestinal peristalsis, causing aggravation of vomiting and diarrhea, aggravation of dehydration and electrolyte imbalance. Therefore, the characteristic of oral rehydration salt is that it should be taken in small amounts and multiple times, and special attention should be paid to controlling the total amount; in addition, if the diarrhea is severe, you must go to the hospital for treatment in time.
#Research: The pathogenicity of XBB.1.5 strain may not be enhanced# #Shanghai: XBB strains introduced from Europe and the United States have not caused local transmission#
