Species and Strain-specific Typing of Cryptosporidium Parasites in Clinical and Environmental Samples Lihua Xiao, Irshad Sulaiman, Ronald Fayer, Altaf A Lal PAGE: 687-692

Epidemiology, Biochemistry and Evolution of Trypanosoma cruzi Lineages Based on Ribosomal RNA Sequences Bianca Zingales, Beatriz S Stolf, Ricardo P Souto, Octavio Fernandes, Marcelo RS Briones PAGE: 159-164

Molecular Study of Similar Biomphalaria Species Linus Spatz, Teofânia HDA Vidigal*/**, Roberta L Caldeira*, Emmanuel Dias Neto***, Stella Maris González Cappa, Omar S Carvalho*/ PAGE: 169-170