West Nile Virus The District of Columbia Department of Health announces its annual campaign to detect the presence of WEST NILE VIRUS. Introduction to West Nile Virus West Nile Virus Brochure English Version* Chinese Version  Spanish PDF Version* Controlling Mosquitoes Around the Home West Nile Virus Infection: Information for Clinicians Mosquitoes Can Carry Disease* Mosquito Count Statistics* West Nile Virus Questions and Answers   Arbovirus Surveillance and Response Plan* West Nile Virus Activity in the District of Columbia* Physician's Alert * Veterinarian Letter* West Nile Virus Weekly Report* * This document is presented in Portable Document Format (PDF). A PDF reader is required for viewing. Download a PDF Reader or Learn More About PDFs.