Specific and nonspecific protective factors in milk: Why don't they prevent viral transmission during breastfeeding?

Isaacs, C. E. (2002). Specific and nonspecific protective factors in milk: Why don’t they prevent viral transmission during breastfeeding? In Advances in Experimental Medicine and Biology (Vol. 503, pp. 173–182). Kluwer Academic/Plenum Publishers. https://doi.org/10.1007/978-1-4615-0559-4_20