Secretory and humoral antibody responses to blastocystis hominis in symptomatic and asymptomatic human infections

ABSTRACT

This study included three groups of individuals In the first two groups, they had positive stool microscopic examinations only for B. hominis indicating blastocystosis with and without gastrointestinal symptoms, respectively; while, the last group included apparently healthy individuals with no parasites in stool. Stool and serum samples of these individuals were subjected to the detection of anti- B. Hominis fecal and serum IgA and IgG antibodies by indirect ELISA and the detection of B. Hominis fecal and serum antigens by double sandwich ELISA