Abstract
Neutralizing antibodies to selected non-polio enteroviruses were found in three lots of human immune serum globulin (ISG) prepared from the sera of persons from different geographic regions. Reciprocal titers to coxsackieviruses B3 and B4 ranged from 400 to greater than or equal to 2000, whereas titers to coxsackievirus A9 and ECHO viruses 5 and 9 ranged from 100 to 400 in all three lots of ISG. The presence of neutralizing antibodies to commonly occurring (coxsackieviruses B1 to B5 and A9 and ECHO viruses 3, 4 and 9) and infrequently encountered (ECHO viruses 5 and 13) serotypes, coupled with the increasing evidence that antibodies are an important factor in preventing illness, support recommending the administration of ISG to those at high risk for serious disease.
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