Urine is the best specimen for the diagnosis of congenital cytomegalovirus, but collection and processing of liquid urine are impractical for screening. Urine dried on filter paper was processed by the same convenient, low-cost method used by newborn screening to test blood spots and showed high sensitivity and specificity.
Keywords: congenital cytomegalovirus; dried urine spots; filter paper; newborn screening.
Published by Oxford University Press on behalf of The Journal of the Pediatric Infectious Diseases Society 2021.