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Data from swabs of personal protective equipment, hand surfaces and other personal effects grouped by flock age: day 0–1 (or day of chick placement) I2 = 0%, days 1–45 (unspecified age of flock upon sampling) I2 = 60%, days 7–14 (early grow) I2 = 56%, 21–42 (mid grow to late grow) I2 = 0%, and catching (slaughter age) I2 = 80%.
