Modern medicine has produced plausible theories to explain the medical conditions of figures in the historical past before, such as Marfan's syndrome, a genetic disorder marked by lengthened features, to explain the physical appearance and early death of Akhenaten. So it is reasonable to expect that given Alexander's symptoms at the time of
his death, recorded in
antiquity and widely reported today, that sooner or later theories about the real cause of
his death would be produced by researchers.
Dr Katherine Hall, a
Senior Lecturer at the Dunedin School of Medicine in New Zealand has proposed that
Alexander died of the neurological disorder Guillain-Barré Syndrome, caused by an infection of the gut bacteria
Campylobacter .
See-
https://www.sciencedaily.com/releases/2019/01/190122115006.htmAnd for a short description of the nasty little bug-
https://www.ncbi.nlm.nih.gov/books/NBK8417/