Transient heating of expressed breast milk up to 65°C inactivates HIV‐1 in milk: A simple, rapid, and cost‐effective method to prevent postnatal transmission

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Abstract
The postnatal transmission of human immunodeficiency virus (HIV) from mothers to children occurs through breastfeeding. Although heat treatment of expressed breast milk is a promising approach to make breastfeeding safer, it is still not popular, mainly because the recommended procedures are difficult to follow, or time‐consuming, or because mothers do not know which temperature is sufficient to inactivate HIV without destroying the nutritional elements of milk. To overcome these drawbacks, a simple and rapid method of heat treatment that a mother could perform with regular household materials applying her day‐to‐day art of cooking was examined. This structured experiment has demonstrated that both cell‐free and cell‐associated HIV type 1 (HIV‐1) in expressed breast milk could be inactivated once the temperature of milk reached 65°C. Furthermore, a heating method as simple as heating the milk in a pan over a stove to 65°C inhibited HIV‐1 transmission retaining milk's nutritional key elements, for example, total protein, IgG, IgA, and vitamin B12. This study has highlighted a simple, handy, and cost‐effective method of heat treatment of expressed breast milk that mothers infected with HIV could apply easily and with more confidence. J. Med. Virol. 85:187–193, 2013.

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