| [infection rates of mollusks and fishes with the larval stages of trematoda of the family opisthorchidae in the yaroslavl region]. | the paper presents the results of a study of the infection rates of mollusks of the family bythiniidae (bithynia tentaculata, opisthorchophorus troscheli) and fishes with the larval stages of opisthorchidae in different districts of the yaroslavl region. a total of 3,708 mollusks from the water reservoirs of different types (small rivers, lakes, ponds, and canals) were examined in the nekouzsky, yaroslavsky, and pereslavsky districts of the yaroslavl region in 1989 to 1999. opisthorchis cercaria ... | 2006 | 17290907 |