Supplementary information

From the following article:

Host-induced epidemic spread of the cholera bacterium

D. Scott Merrell, Susan M. Butler, Firdausi Qadri, Nadia A. Dolganov, Ahsfaqul Alam, Mitchell B. Cohen, Stephen B. Calderwood, Gary K. Schoolnik and Andrew Camilli

Nature 417, 642-645(6 June 2002)

doi:10.1038/nature00778