More than 600 medical workers in Thailand were tested positive for the CCP Virus despite being fully vaccinated with China doses, confirmed on Sunday, July 11, by the country’s health ministry. 

Between April and July, in the 677,348 medical staff who got fully vaccinated with the Sinovac doses, 618 of them still contracted the CCP Virus (COVID-19), data from the Ministry of Public Health in Thailand reviewed and reported by Reuters

This proportion could be equivalent to roughly 0.09% of breakthrough possibilities with the Chinese-originated vaccines.

The announcement disclosed one death from a nurse and one in critical condition due to the infection. 

This latest news has raised concerns over the effectiveness of the two doses, prompting an expert panel to consider a booster dose for optimized protection. 

“This will be a different vaccine, either viral vector AstraZeneca or an mRNA vaccine, which Thailand will be receiving in the near term,” said senior health official Sopon Iamsirithawon, giving that the necessity of a third dose would be discussed the next day. 

Thailand started administering the Sinovac vaccines immediately to most medical and frontline workers after February, with the viral vector doses from AstraZeneca to be available in the country by June.

Over the weekend of July 11, Thailand recorded the highest rates of community infections with 9,418 cases and an average of 91 new daily deaths. 

The Chinese product has been Thailand’s main vaccine against the CCP Virus. According to Al Jazeera English, while doctors have expressed their doubts about the effectiveness of the jabs with the Delta variant, the Southeast Asian country keeps ordering more of the doses and defends Sinovac. 

Test groups indicated that the doses were protective, but wider studies in the country have been scarce, said the news outlet. 

“It’s the problem about the transparency of the report,” said Dr. Pawin Numthava of the Ramathibodi hospital in Thailand. “When it is studied in larger group of participants, it seems like that information is not getting out of the investigator’s hand.”

The U.S. has donated to Thailand 1.5 million Pfizer-BioNTech doses, which are expected to arrive this month.

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