Possible West Nile virus transmission to an infant through breast-feeding--Michigan, 2002.

CDC and the Michigan Department of Community Health (MDCH) continue to investigate West Nile Virus (WNV) infection in a woman, who received a blood product later found with evidence of WNV, and in her child, who was exposed to breast milk later found to be WNV positive by TaqMan. This report updates the findings of this investigation.