Accessibility StatementSkip Navigation As of July, there have been nearly 250,000 cases and 90 deaths from CHIKV worldwide, primarily concentrated in South America, but also found in countries across Africa, Asia and Europe. An estimated 5.6 billion people currently live in at-risk areas across 119 countries as warming trends contribute to expanded regions for the mosquitoes that can carry CHIKV. Chikungunya imposes a significant economic burden, especially in low- and middle-income countries. Long- term co ...