Awareness and prevalence of human milk sharing and selling in the United States.

There are limited data available about the prevalence of human milk (HM) sharing and selling in the general population. We aimed to describe attitudes toward HM selling among participants in a qualitative-interview study and prevalence of HM sharing and selling among a national sample of U.S. mothers. Mothers (n = 41) in our qualitative-interview study felt that sharing or donating HM was more common than selling; none had ever purchased or sold HM. Three themes related to HM selling emerged from this work: questioning the motives of those selling HM, HM selling limits access to HM to those with money, and HM selling is a legitimate way to make money. Some mothers had reservations about treating HM as a commodity and the intentions of those who profit from the sale of HM. Nearly all participants in our national survey of U.S. mothers (94%, n = 429) had heard of infants consuming another mother's HM. Approximately 12% had provided their milk to another; half provided it to someone they knew. Fewer mothers (6.8%) reported that their infant had consumed another mother's HM; most received this HM from someone they knew. A smaller proportion of respondents (1.3%) had ever purchased or sold HM. Among a national sample of U.S. mothers, purchasing and selling HM was less common than freely sharing HM. Together, these data highlight that HM sharing is not uncommon in the United States. Research is required to create guidelines for families considering HM sharing.

Outbreak of extended-spectrum ß-lactamase-producing Escherichia coli transmitted through breast milk sharing in a neonatal intensive care unit.

BACKGROUND: Routine surveillance in a neonatal intensive care unit (NICU) showed an increased detection of extended-spectrum ß-lactamase (ESBL)-producing Escherichia coli (ESBL-E. coli) in August 2012, following nearly a year without detection. AIM: To describe the investigation and interventions by a hospital infection control team of an outbreak of ESBL-E. coli in a NICU. METHODS: Six neonates with positive cultures of ESBL-E. coli (five with respiratory colonization, one with a urinary tract infection), control infants who were negative for ESBL-E. coli during the study period, and mothers who donated their breast milk were included. A case-control study was performed to identify possible risk factors for positive ESBL-E. coli cultures and molecular typing of isolated strains by pulsed-field gel electrophoresis. FINDINGS: The odds ratio for ESBL-E. coli infection after receiving shared unpasteurized breast milk during the study period was 49.17 (95% confidence interval: 6.02-354.68; P < 0.05). The pulsed-field gel electrophoresis pattern showed that all strains were identical, and the same pathogen was detected in freshly expressed milk of a particular donor. After ceasing the breast milk sharing, the outbreak was successfully terminated. CONCLUSION: This outbreak indicates that contamination of milk packs can result in transmission of a drug-resistant pathogen to newborn infants. Providers of human breast milk need to be aware of the necessity for low-temperature pasteurization and bacterial cultures, which should be conducted before and after freezing, before prescribing to infants.