ACKNOWLEDGEMENTS
We thank the president of the cattle farmers and the sub-divisional delegates for livestock of Cameroon and particularly that of Tchabal for support and help in informing farmers about this trial, and P.L.E.B for financial support. We also thank the ProgOncho field lab for their cooperation and storage of samples, plus the driver and all team members for their punctuality and time dedicated to this work. The support of Medical/Animal Ethics Company for provision of the product is gratefully acknowledged.