Pathophysiology: Viral hemorrhagic fever (VHFs) is a general term to severe group of illness caused by RNA viruses from several viral families. It is a severe multisystem syndrome caused by infectious viruses which lead to a potentially lethal disease syndrome characterized by fever, malaise, vomiting, mucosal and gastrointestinal (GI) bleeding.VHF is caused by viruses of four families: arenaviruses, filoviruses, bunyaviruses, and flaviviruses.
Disease Statistics: In many parts of the tropics and subtropics, dengue is endemic, that is, it occurs every year, usually during a season when Aedes mosquito populations are high, often when rainfall is optimal for breeding. In 2013, Dengue fever was reported as the endemic in northern Mexico.
Treatment: Patients usually receive supportive therapy but as such there are no other treatment or established cure for VHFs. Ribavirin, an anti-viral drug, have been effective in treating some individuals with Lassa fever or HFRS.Treatment with convalescent-phase plasma has been used with success in some patients with Argentine hemorrhagic fever.
Research: The above research study was reported by Centers for Disease Control and Prevention, Clifton Road Atlanta, GA, USA.