August 2008 -- The Ministry of Health of
In June 2008, WHO deployed a GOARN mission (the Global Outbreak Alert and Response Network) of two experts in order to assess the epidemiological and entomological situation and to investigate the risk of a full scale urban yellow fever outbreak.
After clinical, epidemiological and laboratory investigation, the GOARN mission confirmed two yellow fever cases. The cases were reported in different health districts of the capital,
The following conclusions were drawn by the GOARN mission:
- Tthe epidemiological situation is that of a temporal cluster of yellow fever cases without geographic focus and without continuation at present;
- Although a mass vaccination campaign was conducted in 2001, the actual yellow fever vaccination coverage is likely to be around or below 60%;
- Vectors capable of transmitting yellow fever are present in
; and Abidjan
- The entomological risk indices (Breteau index and Container index) were over the threshold in all localities investigated, indicating a high risk of yellow fever transmission.
As a result, the mission recommends that the surveillance system to detect new yellow fever cases is strengthened and that vector control measures are implemented.
Subsequent to the mission, in July 2008, a further three laboratory confirmed cases were reported by the Ministry of Health. In addition to the standard IgM tests, more specific tests were used for all cases at the regional reference laboratory, Institut Pasteur in
To date, the Ministry of Health has reported a total of nine suspected cases of yellow fever, including the five confirmed cases.
On the basis of these results, the Ministry of Health has decided to carry out a mass vaccination campaign in
Source : WHO