Serum Antibody Response to Polysaccharides in Children with Recurrent Respiratory Tract Infections

Abstract

We evaluated children (15-months old and older) with recurrent upper respiratory tract infections and normal levels of immunoglobulins in serum for specific polysaccharide immunodeficiency using an enzyme-linked immunosorbent assay method. Results showed that of 12 patients vaccinated with Act-HIB vaccine, one did not develop specific antibodies to Haemophilus influenzae type b, demonstrating that such immunodeficiency is present in Costa Rican children.

OM-85 BV, an immunostimulant in pediatric recurrent respiratory tract infections: a systematic review

“…Several episodes seem "normal" since several peaks of exposure to different agents occur during each season. [9] Some authors [10] …”