Postnatal Cytomegalovirus Infection Through Human Milk in Preterm Infants: Transmission, Clinical Presentation, and Prevention

Clin Perinatol. 2017 Mar;44(1):121-130. doi: 10.1016/j.clp.2016.11.012. Epub 2016 Dec 27.

Abstract

Cytomegalovirus (CMV) is reactivated in the lactating breast in up to 96% of CMV seropositive mothers. There is a relevant entity of postnatally acquired symptomatic CMV infection and disease of preterm infants through raw breast milk (BM). Actual data support negative influence on long-term cognitive development. Concerning prevention, only heat inactivation eliminates virus infectivity, and short-term heat inactivation is most preservative; this can be applied effectively under routine conditions. Short-term heat inactivation for 5 minutes at 62°C maintains the benefits of feeding BM without the disadvantages of CMV transmission.

Keywords: Cytomegalovirus; Ganciclovir; Lactation; Native breast milk; Short- and long-term outcome; Very low birth weight infants (VLBW); Virus inactivation; Virus reactivation.

Publication types

  • Review

MeSH terms

  • Breast Feeding
  • Cytomegalovirus Infections / diagnosis
  • Cytomegalovirus Infections / prevention & control*
  • Cytomegalovirus Infections / transmission
  • Hot Temperature
  • Humans
  • Infant, Newborn
  • Infant, Premature
  • Infant, Very Low Birth Weight
  • Infectious Disease Transmission, Vertical / prevention & control*
  • Milk, Human / virology*
  • Virus Inactivation