Evaluation of pathways for release of Rift Valley fever virus into domestic ruminant livestock, ruminant wildlife, and human populations in the continental United States.

Objective: To evaluate the feasibility for Rift Valley fever virus (RVFV) to enter the continental United States by various routes as well as to identify states in which domestic and wild ruminant and human populations would be most vulnerable to exposure to RVFV.

Study Design: Pathways analysis.

Sample Population: Animals, commodities, and humans transported from RVFV-endemic countries to the continental United States between 2000 and 2005.