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Microscopy of B. burgdorferi phage particles. Samples were collected from PEG-precipitated cell-free supernatants of an induced culture of B. burgdorferi CA-11.2A and viewed by TEM. (Left) Tailless heads, headless tails, and intact phage particles are visible, including both full and empty heads. Phosphotungstic acid stain; magnification, ×75,000 (bar = 150 nm). (Right) Close-up of the intact phage particles. Phosphotungstic acid stain; magnification, ×250,000 (bar = 40 nm).
