Hepatitis E virus infection is a significant public health problem in many parts of the world including Africa. We tested serum samples from 900 patients in Burkina Faso presenting with febrile icterus. They all tested negative for yellow fever, but those from 23/900 (2.6%) patients contained markers of acute HEV infection (anti-HEV IgM and HEV RNA positive). Genotyping indicated that 14 of the strains were HEV genotype 2b. There was an overall HEV IgG seroprevalence of 18.2% (164/900). In a bivariate analysis, the factors linked to HEV exposure were climate and patient age. Older patients and those living in arid regions were more likely to have HEV infection. HEV genotype 2b circulating only in humans can be involved in some acute febrile icterus cases in Burkina Faso. Better access to safe water, sanitation, and improved personal hygiene should improve control of HEV infection in this country.

Patients in Burkina Faso who sought medical attention for febrile jaundice were tested for leptospirosis. We confirmed leptospirosis in 27 (3.46%) of 781 patients: 23 (2.94%) tested positive using serologic assays and 4 (0.51%) using LipL32 PCR. We further presumed leptospirosis in 16 (2.82%) IgM-positive specimens.

The objectives of this study were to determine the seroprevalence and risk factors of leptospirosis among slaughterhouse workers in Burkina Faso. We performed a cross-sectional survey of slaughterhouse workers from Ouagadougou and Bobo Dioulasso between March and April 2021. Blood was collected by venipuncture and serum samples were tested using enzyme-linked immunosorbent assay and microscopic agglutination test. Questionnaires were used to collect information from these workers on sociodemographic characteristics, work activities, knowledge of zoonosis, and risky behaviors. Of the 172 subjects investigated, 28 (16.28%) were found seropositive for leptospirosis using enzyme-linked immunosorbent assay or microscopic agglutination test. The main Leptospira infecting serogroup were Mini, Autumnalis, Canicola, Copenhageni, L. mayottensis (ND), Icterohaemorrhagiae, Pyrogenes/Tarassovi (cross reaction), Panama, and Ballum. Risk factors according to multivariate analysis, included residence (P = 0.02), working at the bleeding station (P = 0.03), contact with feces and urine (P = 0.04), and the practice of agriculture outside the slaughterhouse (P = 0.05). These findings indicate that a significant proportion of slaughterhouse workers are being exposed to pathogenic Leptospira. Public-health interventions against leptospirosis will need to target this occupational group. Proper personal protective equipment and information about the disease should be disseminated among slaughterhouses.

In Burkina Faso, only 70% of people living with HIV knew their status in 2018, while the first 95 target of the UNAIDS suggests that by 2025 at least 95% of people living with HIV (PLHIV) know their HIV status. Female sex workers (FSW) are one of the most HIV-vulnerable groups, making it crucial to estimate the rate and associated factors of HIV testing among FSW. We conducted a cross-sectional study focused on FSW in five main cities of Burkina Faso (Ouagadougou, Bobo-Dioulasso, Koudougou, Tenkodogo, and Ouahigouya). A respondent-driven sampling (RDS) approach was used to recruit participants. Data were collected through in-person interviews between June and August 2022. The HIV testing rate in the past twelve months was examined by sociodemographic characteristics and risky behaviors. A modified Poisson regression in a generalized estimating equation with an exchangeable correlation structure was used to explore the associated factors of HIV testing. Of 1338 FSW (average age: 27.6 ± 7.25 years) HIV negative, 57.8% (95% CI: 54.2–61.3) reported having been tested for HIV in the last 12 months. Among those who started sex work before the age of 18, 48.0% (95% CI: 39.1–57.1) reported having been tested for HIV in the last 12 months. The HIV testing rate among FSWs within the last 12 months was independently associated with age, education level, and being member of an FSW supportive association. Indeed, FSW aged 25 years and more had a 14% higher rate of being tested for HIV within 12 months compared to those 15 to 24 years old (adjusted prevalence ratio (aPR): 1.14 [95%CI: 1.05–1.24]). The HIV testing rate among those who are not members of an FSW supportive association was 16% lower (aPR: 0.84 [95%CI: 0.72–0.97]) than those who are members of FSW supportive associations. The HIV testing rate among FSW is low in Burkina Faso, suggesting an important challenge to reach the first 95% target of UNAIDS among FSW. Innovative diagnostic strategies for the early identification of HIV-infected FSW are essential to achieve the first 95 target by 2025 in Burkina Faso.