Fig. 1From: Lambs immunized with an inactivated variant of Anaplasma phagocytophilum Antibody titers in A. phagocytophilum-immunized (days 0 and 28) (white arrow) and control lambs. All lambs were challenged with live bacteria on day 56 (black arrow). A titer below 1.6 (<1/40) was considered negative.Back to article page