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Fig. 5 | BMC Microbiology

Fig. 5

From: Ultraviolet C inactivation of Coxiella burnetii for production of a structurally preserved whole cell vaccine antigen

Fig. 5

Ultrathin sections of C. burnetii NMII and NMI directly after UVC treatment. UVC treated (A) NMII at 100 µW/cm2 for 20 min and (B) NMI at 250 µW/cm2 for 5 min as well as untreated controls of (C) NMII and (D) NMI and were fixed for preparation of ultrathin sections within 60 min after exposure. Large cell variants (LCV; L, examples) and small cell variants (SCV; S, examples) are present in all bacterial suspensions. Distinct bacterial walls (arrowheads, examples) are clearly visible in the majority of Coxiella. There is no visible damage to the cell wall or cytoplasm and all bacteria appear undamaged. Bars = 500 nm

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BMC Microbiology

ISSN: 1471-2180

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