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Omicron takes over from Delta as dominant strain in Thailand

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Omicron is fast becoming the dominant Covid-19 variant in Thailand instead of Delta, expert virologist Dr Yong Poovorawan wrote in a Facebook post on Tuesday.

He pointed out that it took Delta two to three months to replace Alpha as the dominant strain, but it took only a month for Omicron to take over from Delta.

Omicron takes over from Delta as dominant strain in Thailand

He explained that most Omicron cases were found among foreigners in December before it spread among locals in January. He was citing a study conducted by Chulalongkorn University's Centre of Excellence in Clinical Virology.

Omicron takes over from Delta as dominant strain in Thailand

"Omicron will become the dominant strain in Thailand this month based on the principles of evolution,” he said.

Dr Chalermchai Boonyaleephan

Dr Chalermchai Boonyaleephan, vice-chair of the Public Health Commission, agreed that Omicron was taking over as it has infected 97.1 per cent of patients in the country. Only 2.8 per cent have been infected with Delta, he said, citing a study conducted by Ramathibodi Hospital's Centre for Medical Genomics from January 3 to 16.

He added that the number of Omicron patients would continue to rise gradually in Thailand and hit a peak in three months before falling.

"I hope there is no new Covid-19 variant that spreads faster than Omicron in the future,” he said.

Published : January 18, 2022

By : THE NATION