#bed bugs

This study investigated the seasonal variation in bed bug (Cimex spp.) populations in public places in Korhogo, northern Côte d’Ivoire. Entomological surveys were conducted from August to December 2024 in 31 public sites, including transport stations, markets, schools, restaurants, and garages. Bed bugs were collected through direct inspection of potential hiding places and identified according to species, sex, and feeding status. A total of 4,518 bed bugs belonging to two species, Cimex hemipterus and Cimex lectularius, were collected. Cimex hemipterus was the predominant species, representing 96.76% of all specimens. Overall abundance was significantly higher during the rainy season (52.61%) than during the dry season (47.39%). Infestations were recorded exclusively in transport stations, with Dianra Station showing the highest infestation level. The proportion of engorged bed bugs was also significantly higher during the rainy season (54.77%) compared with the dry season (44.70%), indicating increased blood-feeding activity during humid periods. Seasonal variation was particularly pronounced in C. hemipterus, especially among males. These findings suggest that climatic conditions, particularly humidity, strongly influence bed bug proliferation and feeding activity in urban public environments. The study highlights the importance of strengthening surveillance and control measures in transport stations, especially during the rainy season, to reduce infestation risks and limit the spread of bed bugs in Korhogo.