What is it ? Infection due to Anaplasma phagocytophilia
(formerly Ehrlichia). When does it occur ? Spring, Fall and
Winter Are infected horses contagious ? What are the symptoms ?
Fever, depression, decreased appetite, swelling of lower legs,
jaundice, reluctance to move. How do horses get infected ?
Through the bite of an infected tick. What ticks spread the
disease ? Deer ticks (Ixodes) and possibly other types of tick
as well. How is it treated ? Anaplasmosis is treated with
tetracycline antibiotics, administered either intravenously or
orally. Are there lasting side effects ? Once horses recover,
there are no lasting side effects. How can it be prevented ? By
avoiding tick bites through use of tick repellent products. Can
a horse get the infection again after recovering ? Recovered
horses usually have immunity that lasts up to 2 years, but can
become infected again. Is there a vaccine available to prevent
Anaplasmosis ? (Formerly called Ehrlichia)