Chronology of hematologic parameters of study animal (SA) 4, SA 6, SA 8, SA 20, and SA 22. A Concentration of white blood cells (WBCs). B Concentration of red blood cells (RBCs). C Hemoglobin concentration. D Hematocrit (HCT). Blue continuous vertical line: Beginning of acute stage of SA 4. Red hashed vertical line: Beginning of acute stage of SA 6. Black continuous vertical line: Day of seroconversion. Hashed horizontal lines delimit Simmental reference range. Continuous horizontal lines delimit Limousin reference range (B-D only lower limit displayed).