1. Dengue

3. Dengue cycle Aedes mosquitoes which reside in water-filled containers

4. Dengue (clinical findings) High fever, lymphadenopathy, myalgia, bone and joint pains, headache, and a maculopapular rash. Severe cases may present with haemorrhagic fever and shock with a mortality of 5-10%.

5. Rift valley fever Geographical distribution : Africa and Asia Vector: Sandflies Vertebrate host :Sheep, goats and cattle, camels and human Diseases: 1-Most cases are mild or asymptomatic 2- Hemorrhagic form: characterized by fever, headache, myalgia, arthralgia, nausea, mucosal bleeding and bleeding under the skin. 3- Meningoencephalitis

9. Arboviruses associated with encephalitis. Arboviruses associated with encephalitis. 1-West Nile Encephalitis Family: Flaviviridae. Geog. Dist. : Africa, Asia. Middle East, North America. Vector : Mosquitoes. Vertebrate host : Birds, horses, dogs, cats and human. Diseases : 1- Most cases are mild or asymptomatic. 2- Encephalitis.

10. Arboviruses associated with Encephalitis Arboviruses associated with Encephalitis 2- Eastern equine encephalitis : Family : Togaviridae. Geog. Dist ; America. Vector : mosquitoes. Vertebrate host : Birds, horses and human. Diseases : 1- Most cases are mild or asymptomatic. 2- Encephalitis.

11. Eastern Equine Encephalitis