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: Symptoms, treatments, and prevention. Dengue fever, also known as breakbone fever is a mosquito-borne infection that causes a severe flu-like illness. Four different viruses can cause dengue fever, all of which are spread by a particular type of mosquito.