Breast Milk from HIV Mothers is Good For the Baby's


Photo by DFID – UK Department for International Development via Flickr
As an IBCLC, I’m always thrilled when a new study comes out and affirms what I already know about human milk – that it’s amazing and we’re constantly learning something new about it.
Last summer, one of the first classes I took toward my Master of Public Health was Introduction to Epidemiology. Because it was online, class discussions were held to a strict standard – our professor required us to back up any claims with peer-reviewed evidence.  No matter what the topic was, I did my best to bring it around to breastfeeding, often to the chagrin of the other rising students of public health, who learned quickly just how much they didn’t know about breastfeeding. Naturally, no class about epidemiology (according to Merriam-Webster: the study of the incidence, distribution, and control of diseases in a population) would be complete without discussions of HIV, but the topic of HIV and breastfeeding wasn’t one I ever needed more than an elementary understanding about, given the population I serve as an IBCLC.
A classmate remarked that while breastfeeding might be the best thing to do for most mothers in most parts of the world, in nations where the prevalence of HIV is high, only those mothers with access to highly-active anti-retroviral therapy (HAART) were advised to breastfeed. She had worked with a population that was not advised to breastfeed their babies, and was frustrated by the fact that access to uncontaminated water (both for mixing formula and for cleaning feeding vessels) was nearly as difficult as access to the HAART drugs – making minimization of all risk impossible for these babies born to HIV+ mothers. I had read that, for HIV+ mothers, exclusive breastfeeding, rather than mixed feeding (breastfeeding plus formula) was the safest way to feed her infant, perhaps due to the protective effect of SIgA and other human milk components on the infant’s gut (shown by reduced incidence of transmission in the exclusively breastfed groups in studies cited below). However, a newly-released study offers another explanation, one that adds to the “wow factor” of human milk: antibodies in the milk of HIV-infected mothers actually help neutralize HIV itself.
The study by Friedman, et al. at Duke University in North Carolina, U.S.A. is part of ongoing efforts to develop a vaccine against HIV. Researchers isolated an immunological component of colostrum of HIV+ mothers – HIV-specific B-cells, and noted that they neutralized the virus.
Mothers known to be HIV-infected (and whose infants are HIV uninfected or of unknown HIV status) should exclusively breastfeed their infants for the first 6 months of life, introducing appropriate complementary foods thereafter, and continue breastfeeding for the first 12 months of life.
Breastfeeding should then only stop once a nutritionally adequate and safe diet without breast milk can be provided (WHO, 2010.)

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