Do people who have contracted dengue fever need to be quarantined?

Dengue fever cases do NOT require quarantine, because dengue fever is not spread from person to person. The dengue virus is spread through the bite of an infected mosquito, so the most effective way to prevent future cases is to eliminate mosquitoes that might bite infected persons and then spread the virus to uninfected persons. Quarantines are extreme measures that are effective primarily for serious diseases spread by human-to-human contact.