Chronic infection with hepatitis C virus in patients with elevated or persistently normal serum alanine aminotransferase levels: Comparison of hepatic histology and response to interferon therapy

Abstract

To determine whether naturally acquired serum IgA and IgG antibodies were associated with protection against rotavirus infection and illness, a cohort of 200 Mexican infants was monitored weekly for rotavirus excretion and diarrhea from birth to age 2 years. Serum samples collected during the first week after birth and every 4 months were tested for antirotavirus IgA and IgG. Children with an IgA titer > 1:800 had a lower risk of rotavirus infection (adjusted relative risk [aRR], 0.21; P 1:6400 were protected against rotavirus infection (aRR, 0.51; P