FAQs
What is the time frame of infection?
The usual incubation period is 21 to 28 days. During the first 21 days, the red blood cells are being infected, and the body’s filter system picks out the infected red blood cells and destroys the cells. The cow can make red blood cells as fast as they are being destroyed early in the disease process.
At about 21 days, the infection enters a logarithmic stage, and red blood cells become infected in large numbers. These infected red blood cells are then removed from circulation and destroyed.
When will I know the cow is infected?
Bovine showed no clinical signs of anemia until 50% of their red blood cells (RBC) were destroyed. In acute anaplasmosis, by the time clinical signs of anemia occur, 40% to 60% of their remaining RBCs are infected and going to be destroyed.
Below is an example of daily RBC loss in an acute case. Each vial represents a 24-hour period.
Why is the vaccine so expensive?
Because it works; you could vaccinate a herd of 100 for about the same cost of losing one cow, depending on stockyard prices.
Is there a withdrawal period with the vaccine?
Yes, 60 days.
