Antibody prevalence against haemorrhagic fever viruses in randomized representative Central African populations.

Between 1985 and 1987, 5,070 randomly selected persons living in 6 central African countries (Cameroon, Central African Republic, Chad, Congo, Equatorial Guinea and Gabon) were checked for serological evidence of haemorrhagic fever. Rural and urban areas were studied, including ecoclimatic zones ranging from dry savana to tropical rain forest. Virus-reactive antibodies were found with all antigens tested, and the global prevalence of positive sera was distributed as follows: Crimean-Congo haemorrhagic fever virus, 0.22%; Rift Valley fever virus, 0.18%; Ebola virus, 12.40%; Marburg virus, 0.39%; Lassa virus, 0.06%; and Hantaan virus, 6.15%. A significant variation in antibody prevalence was observed within the study regions. Association between the viruses was not observed.

Organization of schistosomiasis control in Cameroon.

Despite the wealth of information available on schistosomiasis - its epidemiology, treatment and control - the management of this disease still remains a challenge in endemic countries. Over time, we have seen a shift in emphasis of control measures from vector control and passive collaboration from the community to emphasis on case treatment and active community participation (WHO, 1983; Gorden, P., Webbe, G. 1984; Mott, K. E. 1984). With this shift in emphasis, the control of this disease has become more feasible and less expansive. This approach to control is intrinsically related to primary health care which in many countries has not been easily achieved and the monetary costs have been over-shadowed by the increased organizational and management input needed.

Trypanosomiasis: a public health priority in Cameroon.

From a historical standpoint and the present distribution of the disease, human trypanosomiasis, in spite of its comparatively low incidence, still remains a public health priority in Cameroon, requiring both national and international support for control measures. The geographical position of the country within the Glossina belt, certain cultural practices, agro-industrial activities, and an improving transport system are current factors favouring the spread of the disease. Similarly the changing pattern of the disease, ignorance and the lack of valid diagnostic and safe chemotherapeutic tools are some obstacles to current control measures.

[Impact of the African year of vaccination on vaccine coverage in Cameroon]. / Impact des journées africaines de vaccination sur la couverture vaccinale au Cameroun.

The efficiency of the African Year of Immunization has been studied in Cameroon by the evaluation of the nationwide coverage thanks to two cluster sample surveys carried out in rural and urban areas. The results are compared to those of previous surveys.