You may be interested in this funding opportunity from an interagency initiative:
NIH-NSF Ecology and Evolution of Infectious Diseases Program: A Joint Program for Multidisciplinary Research
(NOT-TW-12-022)
Purpose: Support research, including field and laboratory studies and model development, focused on the ecological and evolutionary dynamics of infectious disease systems
Application due date: December 05, 2012
NIGMS contact: Irene Eckstrand, 301-594-0943