Gregarine từ giống Nematopsis thường lây nhiễm trong ruột tôm chân trắng Litopenaeus vannamei nuôi ven bờ Thái bình dương ở Mexico. Sinh trưởng chậm và tử vong của tôm trắng thường đồng thời với lây nhiễm gregarine Kiểm soát sự lây nhiễm bằng những phương pháp
Virtually every organism serves as the host for a complement of parasites.
Parasitism is so common that it is rare to find classes of animals without
members that have adopted a parasitic mode of living. Evidence gained from
various archeological studies indicates that parasitic diseases existed in
prehistoric human populations. Since there is no evidence to suggest that
our long and intimate association with parasites will ever end, it seems
reasonable to propose that the study of human parasites warrants some
Reports on schistosomiasis epidemiology and clinical features in Africa and Brazil, and development of novel drugs that affect the worm tegument, and vaccine based on excretory-secretory products and Type 2 cytokines.