Although the situation of coronavirus disease 2019 (Covid-19) patients in Thailand continues to improve
But still have to watch out for new mutants.
On September 17, Dr. Anan Chongkaewwatana, a virologist
Center for Genetic Engineering
And the National Biotechnology (Biotech) posted on Facebook about the strains of the coviral-19 virus that during the BA.5 slowdown, more variants of the virus will start to come in. take up space
predictable from
outbreak of various ripples
The former context is that there will be a dominant strain that clearly replaces the original strain, for example BA.2 replaces BA.1 and BA.5 replaces BA.2. There are many BA.5 variants, among which there are potential replacements for BA.5.
Changes at the hot spot on the spike spike 6 locations alternately, R346, R356, K444, L452,
N460 and F486, which are not random phenomena.
But it's something the virus finds a way to escape the landscape.
and can infect the population
Of these altered species, data now seem to point to BA.2.75.2 as having the highest escape ability.
Data from a research team in Beijing tested samples of BA.1, BA.2, or BA.5 recoveries and found that their immune systems were not very good at producing antibodies that bind to BA.2.75.2.
And it is likely that BA.2.75.2 may be a viral strain that escapes from the 2nd generation vaccine, whether the formulation containing BA.1 or BA.5 corresponds to a Swedish research report that BA.2.75.2 is a strain.
The best escape
5 It was found that their immunity was not very good at producing antibodies that bind BA.2.75.2.
And it is likely that BA.2.75.2 may be a viral strain that escapes from the 2nd generation vaccine, whether the formulation containing BA.1 or BA.5 corresponds to a Swedish research report that BA.2.75.2 is a strain.
The best escape
5 It was found that their immunity was not very good at producing antibodies that bind BA.2.75.2.
And it is likely that BA.2.75.2 may be a viral strain that escapes from the 2nd generation vaccine, whether the formulation containing BA.1 or BA.5 corresponds to a Swedish research report that BA.2.75.2 is a strain.
The best escape
While
Assoc. Prof. Dr. Teera Woratanarat, Faculty of Medicine, Chulalongkorn University
Facebook post is possible
in the same direction
by referring to the World Health Organization report.
that the omicron BA.5 dominates the global epidemic
The proportion increased from the previous week from 82.4 percent to 90 percent in the latest week. The omicron subspecies BA.2.75.2 was 5 times more resistant to immunity than BA.5. A case of COVID-19 in Stockholm, Sweden, found that BA.2.75.2 is more immune resistant than any previous omikron strain.
On average, it is five times more resistant than BA.5. It is also clearly resistant to the antibody Evusheld, which this drug has recently been introduced into Thailand to prevent COVID-19.
In the group of people with immunodeficiency problems from various diseases
Assoc. Prof. Dr. Thira
further stated that the importance of the species
The sub-species to watch for, including BA.2.75, BA.2.75.2, BA.4.6, and others, are the chances of a new wave of outbreaks at the end of the year, which will be the result of 3 main factors, namely the virus itself.
People's immunity levels after vaccination will decline over time.
and lifestyle behavior
Apparently the virus has evolved itself.
causing increased resistance to immunity
Greater transmission efficiency
while the background level of vaccination
It decreases with the passing of a few months, so what can be controlled is not to be careless.