tokens: METHODS : For 2011 - 2017 , we reviewed : provider - reported cases ( infants < 60 days of age with HSV infection confirmed by culture or polymerase chain reaction ( PCR ) ) , ELR of HSV - positive culture or PCR results in the same age group , and death certificates containing International Classification of Disease , Tenth Revision , codes for herpes infection : P35.2 , B00.0 - B00.9 , and A60.0 - A60.9 .