infected. Then she reviewed the procedures with Steve and his staff. Yes, they said, they always examined the monkeys in the same order. She asked them to show her how they went about their routine. Indeed, the handlers would proceed from one cage to the next in a specific order. The cages were arranged in two layers: a top row and a bottom row. Then Kate numbered the monkeys according to the order in which they were injected with the TB reagent. Once she had that information, she went back to the data compiled on the monkey deaths. She counted carefully. Every eighth monkey remained well,
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