The Oct 4, 2002 issue of the CDC MMWR has as its lead article West Nile Virus
in a breastfeeding mother and infant pair.
www.cdc.gov/mmwr/
They conclude it was most likely transmitted through the breastmilk as the
infant had IgM antibodies to the virus (almost no IgM in human milk - too
large a molecule).  Have not grown the virus in the milk as yet.  Conclude
that women should CONTINUE to breastfeed.
Nancy

Nancy E. Wight MD, FAAP, IBCLC
Neonatologist, Children's Hospital, and Sharp Mary Birch Hospital for Women
Medical Director, Lactation Services, Sharp HealthCare
San Diego, CA, USA
Office: 858-541-4180
Fax: 858-541-4135
Pager: 858-493-0198
Email: [log in to unmask]

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