title: Development and persistence of antibody in persons infected with Babesia microti.
abstract: An indirect immunofluorescent test was used to determine antibody titers to Babesia microti in serum samples collected from 16 patients between 1 week and 1 year after the onset of illness. Titers rose to greater than or equal to 1:1,024 during the first few weeks of illness and then fell gradually to 1:16 to 1:256 over the next 5-6 months.
mesh_terms: D000368:Aged; D000818:Animals; D000906:Antibodies / Q000032:analysis*; D001403:Babesia / Q000276:immunology; D001404:Babesiosis / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008875:Middle Aged; D013997:Time Factors
chemical_list: D000906:Antibodies