The most likely cause of Chamberlain’s cardiomyopathy was an infection in his heart with bacteria such as chlamydia, … order special cultures and sometimes even these cultures fail to grow them. It was only in 1999, after Chamberlain’s death, … Tony Siragusa, Genetic Obesity and Heart Attacks. Deaths of Famous People.
https://www.drmirkin.com/histories-and-mysteries/wilt-chamberlains-heart-attack.html