Human lung fluke Paragonimus heterotremus: differential diagnosis between Paragonimus heterotremus and Paragonimus westermani infections by EITB

The specificity of three major polypeptides (35, 33 and 32.5 kD) from Paragonimus heterotremus antigens prepared from ether‐extracted adult worms was tested against sera from heterologous infections as well as against P. westermani ‐infected sera. Only the 35 kD polypeptide was not present, its antigenic determinant being bound to the antibodies from all P . westermani ‐infected cases. Its cross‐reactivity against various sera from heterologous...