Covid strains “XBB.x” and “BQ.1.1” Why are you running ahead of others?

Recent research from a team in the Netherlands, published in The Lancet Microbe this past month, suggests that XBB.1 and BQ.1.1 are far more mutated than the original COVID-19 virus.

It is therefore not surprising that there is a great deal of immune resistance from both vaccines and those previously infected. And is one of the important reasons that cause infection in many people, both “new infections” and “re-infections”

In the case of “BQ.1.1 that has a lot of outbreaks in America and Europe Why is it taking space from XBB.1.5?”

Data from UKHSA (January 11, 2023) shows that, compared head-to-head, XBB.1.5 has a much higher spread of the outbreak than BQ.1.1 by 40%.

In addition, to keep an eye on Because…it came quietly in many European countries, namely CH.1.1, which had an expansion rate of the outbreak higher than BQ.1.1 as well, but still less than XBB.1.5.

While other strains that are widespread in some countries, such as BF.7 in China, the expansion rate of the outbreak is less than that of BQ.1.1, which is another reason to explain to us that the outbreak of this strain should be It comes from the number of people infected with that species.

defensive behavior including the level of immunity from the vaccine used and the timing of injection and booster not just a matter “species” But alone … the more there is a large number of travelers from abroad, with a large proportion of infections would have consequences in terms of the risk of an outbreak that could erupt in the area

aimed at “Severity of BQ.1.1” data from UKHSA presents an analysis of this matter. By comparing 2,585 people infected with BQ.1.1 and 8,112 people infected with BA.5, it was found that the symptoms were severe enough to be hospitalized.

BQ.1.1 had a 6% higher risk of severe illness than BA.5, but was not statistically significantly different. As for the severity of XBB.1.5, there is no information yet. Must keep following each other closely.

Reflections of the outbreak in the country “Japan”…Daily infection trend slows down But the number of daily deaths is still very high. …The outbreak in Japan reflects that in Thailand, we need to be careful. Because the main drivers are likely to be population congestion and travel activities.

Although the vaccination rate is high But they are very close to each other, get very sick and die a lot.

By… Japan is a clear case study that the latest 8th wave is heavier than all the previous waves.

The above information reflects the fact that…the myth of not having to worry because the virus is weakening. And people who are strong from vaccine immunity or have been infected before…“not true” need to protect themselves regularly in situations that accelerate the economy by relying on more tourism, activities, and risky places.

Take a peek at the strains that lead the outbreak in each country… Overall, globally, BQ.1.1 still occupies the highest proportion and found that the outbreak XBB.1.5 rapidly spread from America to 38 countries.

However, there are countries with subspecies that dominate outbreaks in specific countries such as Asia…India XBB, South Korea BN.1.3, Japan BF.5, China BF.7, Singapore XBB.1, Hong Kong CH.1.1. , Philippines BA.2.3.20, Oceania Region…Australia XBF, BR.2.1, New Zealand CH.1.1 Europe Region…Russia CL.1

Report on the outbreak of “COVID-19” between 7-14 January 2023 “Thailand” had 969 patients in the hospital … 65 deaths, higher than the previous week.

More than 48,000 new infections are estimated weekly, or about 7,000 people per day.

Assoc.Prof.Dr.Theera Worathanarat Leave a warning to repeat the same every time that Need to use daily life, work, study or travel carefully. always protect yourself

Assoc.Prof.Dr.Theera Worathanarat
Assoc.Prof.Dr.Theera Worathanarat

“After opening full tourism activities There is a chance that an outbreak could erupt. as seen from abroad And if it erupts, the nature that will happen depends on how many subspecies enter each area at that time, whether BQ.1.1, XBB.1.5, CH.1.1 or others.

Flipping academic files about “sickness” and “death”

Since December 8, 2022, after China changed its disease control measures At least 60,000 people have died, or at least 2,000 people per day during the past 5 January. The highest number of patients required hospitalization reached 1.6 million, with 128,000 severely ill.

Currently, the strains reported to be detected in China are diverse. Although most of them are still BF.7.x and BA.5.x, there are also several cities with worrying strains, including BQ.1.x, CH.1.1, as well as XBB.1.5.

Leung K and colleagues from Hong Kong published a research paper in the medical journal Nature Medicine (13 Jan. 23) studying the epidemic situation in China. and estimated that in the city of Beijing during the past Christmas Probably three-fourths of the population has already been infected.

It is expected that the number of infected people will accumulate as high as 92.3% at the end of January 2023.

The European Disease Control Agency (ECDC) has published an assessment of the outbreak situation for XBB.1.5, indicating that XBB.1.5 currently has a daily growth rate of approximately 12% in the United States, about 2 times higher than that of BQ.1.1. times and about 3 times more than the original XBB

Let’s analyze that. Its rapid infectious performance is likely due to its increased ability to bind to ACE2 receptors at the target cell surface. and resulting in a higher rate of expansion of the outbreak as seen

However, if comparing “XBB.1.5” with “XBB”, it is estimated that people infected with the XBB.1.5 strain have a 27-62% higher transmission capacity (R0) than XBB.

“COVID-19” is still with us… Daily life needs to be careful, not careless, protect yourself regularly. wearing a mask correctly It will greatly reduce the risk.

Tags: Covid strains XBB .x BQ .1.1 running ahead

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