There are lots of things that can cause hearing loss but I think the most illogical reason would be some sort of high-tech spying device or weapon. That's just

There are lots of things that can cause hearing loss but I think the most illogical reason would be some sort of high-tech spying device or weapon. That's just silly. A more reasonable explanation would be tropical diseases: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4222184/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4222184/ My money's on West Nile Virus (WNV) because it can be completely asymptomatic until you suffer hearing loss. Since WNV has been detected in Cuba (https://www.ncbi.nlm.nih.gov/pubmed/16707068 https://www.ncbi.nlm.nih.gov/pubmed/16707068) it seems plausible. Then plain old opiate/heroin usage: https://www.ncbi.nlm.nih.gov/pubmed/21586255 https://www.ncbi.nlm.nih.gov/pubmed/21586255 ...but it's not like we have an opioid epidemic or anything!