| Authors [Reference] | Period | Hepatitis | Population | Sample size | Prevalence (%) |
| Kei [9] | 2002 | B | Blood donors | 500 | 4.8 |
| Ade [10] | 2005 | B | Blood donors | 7654 | 7.5 |
| Sehonou [11] | 2007 | B | HIV* at the CNHU-HKM** | 205 | 11.2 |
| Sehonou [12] | 2007 | B | HIV in Comè | 150 | 11.3 |
| Affolabi [13] | 2012 | B | HIV and tuberculosis in Cotonou | 171 | 11.1 |
| Amidou [14] | 2012 | B | Consultants at the CHD*** Parakou | 1516 | 13.9 |
| Sehonou [15] | 2013 | B | Hemodialysis patients in Cotonou | 140 | 6.0 |
| De Paschale [16] | 2014 | B | Pregnant women in Tanguiéta | 283 | 15.5 |
| Affolabi [17] | 2015 | B | Persons deprived of liberty in Cotonou Abomey, Parakou, Porto-Novo (Benin) | 503 | 11.7 |
| Kpossou [2] | 2016 | B | Consultants or hospitalized at the CNHU-HKM | 2060 | 15.2 |
| Saké [18] | 2019 | B | Pregnant women in Parakou | 214 | 14.0 |
| Kpossou [19] | 2019 | B + D | Patients with HBsAg in Cotonou (CNHU-HKM and Atinkanmey) | 156 | 3.8 |