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Department of Science is wary of Covid-19, found that BA.4-BA.5 is likely to increase
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24 Jun 2022 10:37 p.m.
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Department of Medical Sciences, MOPH is on alert for COVID-19 in Thailand, found that the BA.4-BA.5 strain is likely to increase rapidly. But still can't confirm that "more severe" lean injections to stimulate help.
On 24 June, Dr. Supakit Sirilak, Director-General of the Department of Medical Sciences, together with Dr. Throne Upaphong, Deputy Director-General of the Department of Medical Sciences, and Dr. Achawin Rojanaviwat, Director of the Institute of Scientific Research public health
Press release on COVID-19 surveillance
and the mutation of the infection that COVID-19 strains Omicron
It is the main species in the global epidemic.
The World Health Organization has classified BA.4 and BA.5 as Species to Watch (VOC-LUM). In many countries, the proportion of BA.5 has increased.
From the random surveillance of covid strains in Thailand, currently 53.79% are still Omicron BA.2, followed by Omichron BA.4/BA.5, 45.71% and 0.51% are O. Micron BA.1
From 181 to 22 June 2022, Omichron strains BA.4 and BA.5 were randomly identified in Thailand from 181 preliminary assays, which were confirmed by whole gene transcription (WGS) and reported to Central base system GISAID 81 cases, most of them infected in Bangkok.
This is because it is the area with the most sampling.
Making the total number from 14 May to 22 June, 214 BA.4 and BA.5 have been found in Thailand, which will have to look at the trend for another 2-3 weeks from now.
by cooperating with the Department of Medical Affairs and related agencies
If found that the patient is infected with severe symptoms to be hospitalized.
Requests to send samples for genetic decoding to the Department of Medical Sciences.
It may be necessary to consider some measures that are more intense.
Supakit added that BA.4 and BA.5 have mutations in the L452R location, which is the same location where the mutation was found in the Delta line.
From the data, it was found that the ability to transmit infection increased.
and dodge more immunity
The severity cannot be confirmed. However, data from laboratory studies show that BA.4 and BA.5 damage the lungs and make it easier to develop pneumonia.
But there is not enough evidence of clinical data in many countries.
An increase in the number of BA.5 was found, while BA.4 and BA.2.1.2 tended to decrease.
The rate of diffusion of BA.4 and BA.5 strains is currently available.
It was clear that the strain spread was approximately 1.5 times faster than BA.2. It was found in the laboratory, and it was found that antibodies were less effective against BA.4 and BA.5. some kind
that have to respond to drugs that stimulate the immune system less
However, people who have previously been infected with other omikron strains
May be re-infected with BA.4 and BA.5 strains, but if receiving the booster vaccine will make the body more immune to the virus than those who have not been vaccinated
Therefore, getting a booster vaccination to have a high enough immunity.
still necessary
Can help reduce the severity of infection.
including proper self-protection measures such as wearing masks in crowded places, washing hands
Director-General of the Department of Medical Sciences
further said that
Please don't panic and worry too much.
because the Department of Medical Sciences
and the Ministry of Health
has continuously monitored the situation
Including reporting the results of the surveillance of the species into the central database GISAID without concealing information.
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