Derby shoe. A derby (pronounced /ËdÉËrbi/ DAR-bee or in North American English /ËdÉËrbi/ DUR-bee; also called gibson) is a style of boot or shoe characterized by quarters with shoelace eyelets that are sewn on top of the vamp. This construction method, also known as open lacing, contrasts with that of the oxfords.
Dengue is an infectious disease caused by dengue viruses, which are transmitted to humans by mosquitoes. The rising level of dengue infections has become a serious international concern.
Dengue fever is transmitted by the bite of an Aedes mosquito infected with a dengue virus. The mosquito becomes infected when it bites a person with dengue virus in their blood.engue (pronounced DENgee) fever is a painful, debilitating mosquito-borne disease caused by any one of four closely related dengue viruses.