Transmission electron micrograph of M Transmission electron micrograph of M. pneumoniae-infected hamster tracheal ring, demonstrating the close association of the attachment structure to the epithelium (arrow). Transmission electron micrograph of M. pneumoniae-infected hamster tracheal ring, demonstrating the close association of the attachment structure to the epithelium (arrow). (Copyright J. L. Jordan and D. C. Krause.) Ken B. Waites, and Deborah F. Talkington Clin. Microbiol. Rev. 2004; doi:10.1128/CMR.17.4.697-728.2004