Fig 3.

Leukocytosis, cough illness, and fever in pertussis-infected baboons. (A) Once prior to inoculation and on the indicated days postinoculation, blood was drawn from each weanling baboon, and the number of circulating white blood cells per microliter of peripheral blood was determined (n = 9). (B) A subset of infected baboons (n = 6) were observed four times per day as described in Materials and Methods. The number of coughs per hour was determined for each animal at each observation period, and the overall mean was reported for each day postinoculation. (C) The core temperature of each baboon was measured three times prior to inoculation and at each examination postinoculation. One data point is presented for each baboon (n = 9) at each time point.