John Robert BartaDr. John R. Barta is a Professor at Guelph University. His research focuses on better understanding the interactions that parasites of the phylum Apicomplexa (e.g., Plasmodium, Eimeria, Isopora, Toxoplasma gondii, Crytosporidium) have with host verterates. Dr. Barta's main area of expertise is coccidiosis in chickens. Read More Read Less