Can the flu be transmitted through breast milk?
No. Flu is not spread to infants through breast milk. The flu is spread mainly from person-to-person via respiratory droplets when people cough, sneeze, or talk, or possibly, when a person touches a surface or object that has the flu virus on it and then touches their own mouth or nose.
Should mothers continue breastfeeding if they have flu or come in contact with someone with flu?
Yes. A mother’s breast milk contains antibodies and other immunological factors that can help protect her infant from flu and is the recommended source of nutrition for the infant, even while the mother is ill. If a mother is too sick to feed her infant at the breast and another healthy caregiver is caring for the infant, the breastfeeding mother should be encouraged and supported to regularly express her milk so that the infant continues to receive her breast milk. Prior to expressing breast milk, mothers should wash their hands well with soap and water and, if using a pump, follow recommendations for proper cleaning. Because breast milk supply could decrease for some mothers while they are ill, mothers may need additional lactation support from a lactation provider to address milk supply concerns, reduce the possibility of developing a breast infection, and support the breastfeeding relationship during this time.
Can infants who have flu continue to breastfeed?
Yes. When an infant has flu, the mother should be encouraged to continue breastfeeding or feeding expressed breast milk to her infant. Infants who are ill need fluids to stay hydrated and breast milk is the best option. Expressed breast milk can also be given from a cup, syringe, or bottle if the infant is unable to breastfeed directly at the breast.
Source: CDC
Link: https://www.cdc.gov/breastfeeding/breastfeeding-special-circumstances/maternal-or-infant-illnesses/influenza.html