Résurgence des épidémies de fièvre jaune en Côte-d’Ivoire

Abstract

Resurgence of yellow fever epidemics in Côted'Ivoire remains a major problem of public health. To describe this disease through the early alarm system of National Institute of Public Hygiene (NIPH) is convenient to us. This is a cross-sectional study with descriptive aiming, which proceeded with epidemiological surveillance service of NIPH. The data were collected over 7 years (from 2001 to 2007), starting from the cards of notification, reports, and registers of the service. The main findings of our study are that: 1) we listed 1468 suspect cases including 41 confirmed and the lethality rate was 17.07% among the confirmed cases; 2) most cases of yellow fever were recorded between the years 2001 and 2007; 3) confirmed cases of yellow fever were above 15 years old in 83% of cases. This could be explained by absence of immunization during this age period; 4) recrudescence of cases was observed during the rainy season (June-July and September-October) and the principal vector was Aedes aegypti; 5) data analysis revealed a mean level of 79% for completude and 57%for promptitude of notification; these rates are inferior to WHO norms and; 6) average time of vaccine response post-epidemic was 31 days. Late response is due to difficulties in supplying vaccines. Reinforcement of epidemiological surveillance, prevention by mass immunization, and measurements of hygiene and cleansing are essential to slow down the evolution of this disease.

Biology of two larval morphological phenotypes ofAedes aegyptiin Abidjan, Côte d'Ivoire

“…In Côte d'Ivoire, yellow fever cases have been reported, respectively, in 2008, 2009, 2010 and 2011 in Abidjan, the economic capital (Konan et al , 2009; WHO, 2016) and in the northern part of the country in 2009 (Attoh-Touré et al , 2010). Three dengue fever cases were also reported for the first time in 2008 in the country (WHO, 2009).…”

Aedes aegypti Susceptibility to Insecticide from Abidjan City, Cote D'ivoire

“…Several episodes of yellow fever have been reported in Cô te d'Ivoire since 1999, and A. aegypti has been constantly found in each of the infected zones in the country , 2002, InVS 2008, WHO 2008a, 2008b, Attoh-Touré et al 2010. In Abidjan the economic capital, three outbreaks have been reported between 2001 and 2008.…”

Expansion ofAedes africanus(Diptera: Culicidae), a sylvatic vector of arboviruses, into an urban environment of Abidjan, Côte d'Ivoire

“…Rapid urbanization and the resurgence of mosquitoes due to global warming have significantly increased the risk of urban epidemics internationally. Dengue, the most widespread vector‐borne pathology in the world, and yellow fever represent two arboviruses that are re‐emerging in Côte d'Ivoire since 2008 (Attoh‐Touré et al ). These vector‐borne agents are transmitted to humans by Aedes mosquitoes that constantly circulate in our environment (Guindo‐Coulibaly et al , Zahouli et al ).…”

“…Imported cases from Côte d'Ivoire were reported in France (six cases) and Japan (one case) (La Ruche et al 2010, Moi et al 2010, Aoussi et al 2014. A resurgence of yellow fever cases was also noticed in the northern part of the country in 2009 (Attoh-Touré et al 2010) and in the district of Abidjan, the economic capital, consecutively, in 2008consecutively, in , 2009consecutively, in , 2010consecutively, in and 2011consecutively, in (Konan et al 2009). Even if active cases of Zika virus were not yet reported, people who had already contracted the virus in the past had been identified (Akoua-Koffi et al 2001).…”