PETALING JAYA: The senior Health Ministry officer who died a week after receiving a Covid-19 booster shot did not suffer from any unusual side effects after vaccination, says Health director-general Tan Sri Dr Noor Hisham Abdullah (pic). Dr Noor Hisham said the sudden death of Dr Chai Koh Meow on Nov 17 was still under investigation and had urged the public not to make speculations on the case. "Dr Chai received his Covid-19 booster shot on Nov 9. Dr Noor Hisham said Dr Chai was well liked by his colleagues, the public as well as the traditional and complementary medicine community. "May his soul be showered with grace," said Dr Noor Hisham.