This means that they will be immune to that strain of the virus, but infection with other strains can have drastic complications. It is caused by a virus from the family of flaviviridae and related to west nile virus and yellow fever.
[header] How to avoid getting dengue fever on a mission trip [title] Know what dengue fever is. [step] Dengue (pronounced as' den-gay') is a communicable disease (not contagious), transmitted to humans by the biting blood meal of an infected mosquito. Once infected, the person is sick for a period of days but carries the virus thereafter.