Hydroxycholoroquine Intolerance by some Africans It appears some people from regions in Africa where malaria is or was endemic, may be in fact intolerant to or get poisoned by hydroxychloroquine. Apparently they lack a certain enzyme, G6PD. https://www.heise.de/tp/features/Covid-19-ein-Fall-fuer-Medical-Detectives-4713219.html "G6PD Deficiency Prevalence and Estimates of Affected Populations in Malaria Endemic Countries: A Geostatistical Model-Based Map" https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1001339 This may explain the various reports of hydroxycholorquine posioning from Nigeria and France (many immigrants) and maybe even New York. Which may only have had so many deaths then because of mistreatment. https://www.bloomberg.com/news/articles/2020-03-21/nigeria-reports-chloroquine-poisonings-after-trump-praised-drug https://youtu.be/SI-7AFxK_cw