Disseminated herpes simplex virus infection in a neonate

The emergency department (ED) evaluation of the neonate with sepsis or symptoms suggesting sepsis usually includes a complete blood count, catheterized urinalysis with culture, blood cultures, cerebrospinal fluid analysis and culture, and possibly a chest radiograph. Admission for observation for neonates at high risk for sepsis is universal. Depending on the patientʹs presentation and the preference of the admitting physician, intravenous antibiotics are started. Typically, ampicillin and either an aminoglycoside or cefotaxime are chosen because they cover the likely pathogens in this age group, ie, group B streptococci, Escherichia coli and other gram-negative enterics, and Listeria monocytogenes. Coverage for viral infection, most notably herpes simplex virus (HSV), is only rarely instituted in the ED and is usually considered if the patient has obvious ulcerative lesions or if the mother has known HSV infection. Unfortunately, antiviral therapy with acyclovir or vidaribine has to be started in the early stages of infection to be effective. If antiviral therapy is started after viral entry into cells, morbidity is severe and mortality approaches 80%. Neonates who survive are usually severely disabled. Broadening the indications for initiating antiviral therapy to include the neonate whose mother has any history of a sexually transmitted disease may prevent the sequelae of untreated or inadequately treated HSV infection. A case is reported of an 8-day-old girl who developed disseminated HSV infection and died as a result of hepatic failure.