Which treatment is effective against coccidiosis?

Sulfadimethoxine and amprolium are both effective treatments for coccidiosis, which is a parasitic disease caused by protozoa in the genus Eimeria. These compounds work by targeting the life cycle of the coccidia parasites, thereby inhibiting their reproduction and allowing the host's immune system to clear the infection. Sulfadimethoxine is a sulfonamide antibiotic that interrupts folic acid synthesis in protozoa, while amprolium acts by competing with thiamine, leading to energy depletion in the parasites.

In contrast, other treatment options listed do not specifically address the protozoa responsible for coccidiosis. Anthelminthics are designed to treat worm infections and do not have an impact on coccidia. Steroids, while they may be helpful in managing inflammation, do not target the coccidia parasites, and using them could even suppress the immune response. Probiotics can support gut health but are not a direct treatment for coccidiosis and do not eliminate the parasites themselves. Hence, sulfadimethoxine or amprolium is recognized as the suitable choice for effective treatment against coccidiosis.