HIV is a virus which attacks the immune system and causes a lifelong severe illness with a long incubation period. The end-stage of the infection, acquired immunodeficiency syndrome (AIDS), results from the destruction of the immune system.
Rift Valley fever is an acute viral febrile haemorrhagic disease that affects primarily ruminants in Africa and in the Arabian Peninsula: cattle, buffalo, sheep, goats and camels. Humans may become infected by mosquito bites and through direct or indirect contact with the blood or organs of infected animals.
Rift Valley fever is an acute viral febrile haemorrhagic disease that affects primarily ruminants in Africa and in the Arabian Peninsula: cattle, buffalo, sheep, goats and camels. Humans may become infected by mosquito bites and through direct or indirect contact with the blood or organs of infected animals.
Dengue is a mosquito-borne viral disease widely spread in tropical and subtropical regions. It is transmitted by Aedes mosquitoes. Most of the clinical cases present a febrile illness, severe forms include hemorrhagic fevers and shock with fatalities.