Primary infection with type 2 only causes classic symptoms. Although these ideas are largely unsubstantiated, the concept of sequential exposure helps explain some of the aforementioned problems. More research must be performed to determine exactly what synergistic properties these serotypes exhibit, and what symptoms these synergies cause. Currently, no dengue vaccine exists. This is not surprising in view of the preceding information.
Dengue is definitely a problem of urbanization.
Synanthropic mosquitoes, such as Aedes , have evolved and vectored the disease to all parts of the world. Different forms of dengue cause characteristic unpleasant symptoms as well as a high mortality. The cause of the disease itself requires more studies, since it is gradually spreading to different parts of the world, and vaccines may not be immediately forthcoming. All Rights Reserved. This information may not be distributed or referenced without the express permission of the author.