Fig. 4From: Toxoplasma gondii oocyst-driven infection in pigs, chickens and humans in northeastern ChinaDetection of anti-T. gondii antibodies in free-range chicken serum samples using different antigens. a The chicken serum samples were tested by GRA7-, OWP8-, and CCp5A-ELISAs, and the dashed line indicates the cut off of the reactions. b Positivity rates were evaluated using GRA7-, OWP8-, and CCp5A-ELISAs in serum samples from free-range chickens (nā=ā96)Back to article page