Health Ministry steps in to defend four doctors 36 published : 4 Aug 2021 at 06:00 36 Prof Dr Yong Poovorawan, chief of the Centre of Excellence in Clinical Virology at Chulalongkorn University, shows a syringe of a Covid-19 vaccine when inoculation to contain the virus started in the country at the Public Health Ministry in Nonthaburi province on Feb 28. (Government House photo) The Public Health Ministry has called on members of the public to give fair treatment to four senior doctors who were strongly criticised on social media for their alleged involvement in the selection of vaccines. The ministry on Tuesday issued a statement saying that the four under-fire doctors have worked tirelessly to fight Covid-19 and were never involved in ministry decisions to buy Covid-19 vaccines.