opisthorchis viverrini

acanthocephala analyzing ancylostoma ascariasis ascaris cestode diminuta disease egg exam experiment fecal feces fluke helminth helminthology hookworm hymenolepis infection laboratory liver lumbricoides lung medical micro microbiology microscope microscopy nematoda opisthorchis organism oxyuriasis paragonimiasis paragonimus parasite patient pinworm protozoa research roundworm science scientific stool taenia taeniasis tapeworm technology test trematoda trichinosis trichiura trichuliasis trichuriasis trichuris viverrini westermani whipworm worm