Text and Data Mining valid from 2018-07-16
Received: 1 March 2018
Accepted: 5 July 2018
First Online: 16 July 2018
Ethics approval and consent to participate
: According to national ethics committee (Comité d’éthique pour la recherche en Santé au Burkina Faso), this protocol do not required ethics approval because it is disease surveillance study. We also retrospectively analyzed surveillance data.
: Not applicable.
: The authors declare that they have no competing interests.
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