the value of the blood group in ascariasis and toxocariasis

The predisposition of blood group type to some diseases has been established. it has been shown that some parasites have an affinity for a and b blood group antigens. the purpose of this study was to reveal the prevalence of ascariasis and toxocariasis depending on the blood group type in patients with bone and joint pathology, and to establish the features of hematological and biochemical parameters depending on the presence of a parasitic infection. patients with bone and joint pathology underwent determination of hematological and biochemical parameters, detection of the blood group type, immune group-specific antibodies and igg antibodies to ascaris lumbricoides (a. lumbricoides), and toxocara canis (t. canis). a high frequency of seropositivity to a. lumbricoides was revealed in individuals with blood group a and a weak b antigen, whereas seropositivity to t. canis was mostly found in persons with blood group b. the persons with seropositivity to a. lumbricoides showed by eosinophilia, leukopenia and thrombocytopenia, increased serum urea and immune group-specific antibodies. the persons with seropositivity to t. canis demonstrated eosinophilia, monocytopenia and hogh level of immune group-specific antibodies. the immune antibodies showed a direct correlation with igg antibodies to a. lumbricoides and t.  canis.  a high level of immune antibodies was determined in individuals with weak a and b blood group antigens and was associated with anemia and eosinophilia. monitoring the level of immune group-specific antibodies in individuals with seropositivity to a. lumbricoides and t. canis may allow preventing anemia in this category of patients.