Crimean–Congo Haemorrhagic Fever (CCHF): A Zoonoses

Dengue haemorrhagic fever

Factors increasing the risk of DHF outbreaks The occurrence of DHF outbreaks is linked to a number of factors, including the density of mosquito vectors, particularly that of Aedes aegypti. The precise population density of Ae. aegypti that is needed to sustain dengue virus transmission epidemically or endemically has yet to be determined, but experience in Singapore in recent years suggests th...

Ebola haemorrhagic fever

Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA (H Feldmann MD); Department of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada (H Feldmann); and Department of Microbiology and Immunology, University of Texas Medical Branch and Galveston...

Ebola haemorrhagic fever.

Ebola viruses are the causative agents of a severe form of viral haemorrhagic fever in man, designated Ebola haemorrhagic fever, and are endemic in regions of central Africa. The exception is the species Reston Ebola virus, which has not been associated with human disease and is found in the Philippines. Ebola virus constitutes an important local public health threat in Africa, with a worldwide...

Dengue haemorrhagic fever

Crimean-Congo haemorrhagic fever.

Crimean-Congo haemorrhagic fever (CCHF) is one of the most widespread arboviroses in the world. It is present in Africa, south-east Europe, the Middle East and Asia. It is caused by a nairovirus (Bunyaviridae family) transmitted by several species of ticks. The geographical distribution of the disease coincides with the distribution of Hyalomma ticks. While infected livestock do not show signs ...