Cecchi, G., Ilemobade, A., Le Brun, Y., Hogerwerf, L. and Slingenbergh, J. 2008. Agro-ecological features of the introduction and spread of the highly pathogenic avian influenza (HPAI) H5N1 in northern Nigeria. Geospatial Health. 3, 1 (Nov. 2008), 7–16. DOI:https://doi.org/10.4081/gh.2008.227.