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Additionally, an Administrative Research Authorization was granted by the Cameroon Ministry of Public Health (no. 631\u20131315). We also met the Permanent Secretary of the National Onchocerciasis Control Programme, the Regional Delegates of Public Health for the West, Centre and Littoral Regions, and the District Medical Officers of the selected Health Districts, to obtain their verbal or written approvals. All participants were informed about the study objectives and the audio taping of interviews\/FGD before the beginning and agreed with the procedure. The following precautions were taken in order to ensure our participants anonymity: (i) informed consent was verbally obtained; (ii) data were safely stored in a computer with password coded access; (iii) the names of respondents and of their origins were coded in the final manuscript.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"246"}}