https://www.bangkokpost.com/thailand/general/2464274/expert-warns-of-mrna-jab-link-to-acute-heart-issues Dr Thiravat Hemachudha, chief of the Thai Red Cross's Emerging Infectious Diseases Health Science Centre, said there have been at least 25 cases of sudden death occurring within a week from a patient receiving an MRNA injection. All the deaths were recorded as resulting from either myocarditis or pericarditis and had occurred in people aged between 45-75 who had received an mRNA vaccine, he said.