DOI: 10.1128/IAI.00540-06
Volume 74, no. 1, p. 528-536, 2006. Page 528: The affiliations should read as shown above.
Page 535, Acknowledgments: The first paragraph should read as follows.
ACKNOWLEDGMENTS
This research was funded by a Discovery Grant from the Natural Sciences and Engineering Research Council of Canada and the Le Fonds quebecois de la recherche sur la nature et les technologies (FQRNT) Centre for Host-Parasite Interactions. C. Ivory is a recipient of the Lynden Laird Lyster Memorial Fellowship from the Institute of Parasitology of McGill University.
