Previous Article Next Article Table of Contents Nature, Vol.397, No.6720, 574-574, 1999 DOI10.1038/17512 Export Citation Horse sickness and ENSO in South Africa Baylis M, Mellor PS, Meiswinkel R Keywords:EL-NINO;OSCILLATION;EPIDEMICS;FUTURE Please enable JavaScript to view the comments powered by Disqus.