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Design and use of the capsule to isolate mites on-host. (A) A cross-section of a solid foam capsule attached to double-sided tape (T), which was used to attach the capsule to the bird's skin. A hole bored through the foam (open arrow) enclosed the mite(s), but allowed access to the skin for blood feeding. (B) An intact capsule attached to a hen (white arrow) on the lower abdomen. Feathers were cleared from the area to attach the capsule.
