Each parasite’s eggs, cysts or oocysts present in each sample were enumerated and densities of each species were expressed as ‘‘many’’ (>three (oo) cysts per high-power field; >20 eggs per low-power field); ‘‘moderate’’ (two (oo)cysts per high- power field; 10–19 eggs per-low power field); ‘‘few’’ (one (oo)- cyst per high-power field; three to nine eggs per low-power field); and ‘‘rare’’ (two to five cysts and