LTF and COVID-19: In conclusion, the whole of the aforementioned findings (absence of replicating virus in breast milk from COVID-19-positive lactating mothers with low disease activity, decreased lactoferrin levels in milk of infected mothers, absence of proven viral mother-to-child transmission via breastfeeding) suggests that the lactoferrin naturally occurring in human breast milk is consumed in the attempt to combat SARS-CoV-2 infection, thus decreasing viral load and providing a limited viral shedding in milk.