Transmission electron micrographs of epithelial respiratory cells exposed to S. maltophilia CF 1 (A) and NCF 13 (B) for 3 h. Transmission electron micrographs.

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Transmission electron micrographs of epithelial respiratory cells exposed to S. maltophilia CF 1 (A) and NCF 13 (B) for 3 h. Transmission electron micrographs of epithelial respiratory cells exposed to S. maltophilia CF 1 (A) and NCF 13 (B) for 3 h. Note the presence of intracellular bacteria in membrane-bound endocytic vacuoles. Magnifications, ×30,000 (A) and ×35,000 (B). (Panel A courtesy of M.-C. Plotkowski; panel B reprinted from reference 73 with permission of Wiley-Blackwell.)‏ Joanna S. Brooke Clin. Microbiol. Rev. 2012; doi:10.1128/CMR.00019-11