Yellow fever transmitted through breast milk from vaccination

CANADIAN doctors have reported a probable case of transmission of vaccine strain yellow fever virus to an infant through breastfeeding.

Recommendations to avoid yellow fever vaccination in lactating women have been made on “theoretical grounds only”, the paediatricians said.

But the latest report brings to four the probable cases of transmission via breast milk worldwide. The baby recovered without neurological deficit.

The Australian Health Department advises mothers to reconsider travel in endemic areas or discuss breastfeeding avoidance with their doctor.

CMAJ 2011, online 7 Feb