An entomological study was conducted during the construction of a small hydro-agricultural dam at Raffierkro near Bouaké, in central Côte d’Ivoire, between June 2007 and November 2009. The objective of this research was to evaluate the variation in specific diversity, abundance and nuisance of mosquitoes species in correlation with the different stages of the dam implementation. Larvae were collected using a ‘dipping’ sampling method in irrigation canals, stagnant water footprints and fish breeding ponds to determine specific diversity. Adult mosquitoes were captured on human bait over 2 to 3 consecutive nights. A total of 20,925 adult mosquitoes and 489 larvae were collected, divided into 6 genera and 21 species, with the most prevalent being Anopheles gambiae and Mansonia africana. Abundances exhibited considerable variation from one year to the next, with a marked increase during the rice-growing season, which was accompanied by a significant nuisance, particularly in localities in proximity to the dam and rice-growing facilities. This study highlights the impact of the facilities on culicid dynamics, with potential implications for disease transmission.

Serological diagnosis of cysticercosis allows a detection of the disease on living pigs. It routinely uses Elisa as a screening test and Western blot (Eitb) as a confirmatory test. The aim of this study was to assess the performance of the Elisa / Eitb association in order to improve decision-making for the control of this pathology in Côte d’Ivoire. A group of 246 of samples of pigs serums, divided into 123 negative for Elisa and 123 positive for Elisa were drawn at random and were analyzed by the Western blot test. Thus, a contingency table was used to analyze the characteristics of the screening test (Elisa) through the parameters of sensitivity (Sp), specificity (Sp). These performances of diagnostic of the combination of Elisa / Eitb tests was evaluated according to texts design in serial or mixed-strategy. The data obtained for these two patterns were compared. The overall results showed good sensitivity (Se = 76.2%) with average specificity (Sp = 55.4%). The diagnostic performance evaluation of the combination of Elisa / Eitb tests gave 13% serial positives and 17% in the mixed regimen, a difference of 4%. Also, on a total of 123 sreums negatives analyzed by Eitb, 10 or (8.13%) were found positives, corresponding to a loss linked to the screening of samples by Elisa.