1.   Piroplasmosis is a parasitic blood disorder that causes fever, swelling and often, death.

2.   The disease is a parasitic blood disorder transmitted by ticks that causes fever and swelling and, very often, the death of infected horses.

3.   The disease is a parasitic blood disorder transmitted by ticks that causes fever and swelling and can kill infected horses.

4.   The disease is a parasitic blood disorder transmitted by ticks.

5.   The malady is a parasitic blood disorder that causes fever and swelling and can kill horses.