File:Legionella pneumophila-s.jpg

Summary
http://phil.cdc.gov/phil/home.asp Transmission electron micrograph of Legionella pneumophila. Obtained from the CDC Public Health Image Library. Image credit: CDC (PHIL #1187). This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services. As a work of the U.S. federal government, the image is in the public domain.