after opsonization with whole immune sera ( with antibody and total complement pathway ) , heat-inactivated immune sera ( with antibody alone ) , or magnesium dichloride-ethylene glycol tetraacetic acid-chelated immune sera ( with antibody and alternative complement pathway ) , live s. pneumoniae cells were incubated at 37 degrees c with normal polymorphonuclear leukocytes while serial chemiluminescence measurements were recorded .
C0020960
immune sera
C0003241
antibody