Do sensitive detection assays for influenza RNA reveal viremia in US blood donors?
Targeting blood donor populations most likely to have influenza infection, we failed to detect influenza RNA in 1482 donor samples, with most tested by 3 different RNA assays. Seasonal influenza does not appear to pose a significant contamination threat to the blood supply.
Significant differences in the iNOS promoter polymorphism genotype frequency between northwest Spanish RA patients and controls suggest a potential role for this polymorphism in susceptibility to RA.