top | item 45258317 Data investigation: Childhood vaccination rates are backsliding across the U.S. 7 points| slu | 5 months ago |nbcnews.com 1 comment order hn newest slu|5 months ago "Among the states collecting data for the measles-mumps-rubella (MMR) vaccine, 68% of counties and jurisdictions now have immunization rates below 95% — the level of herd immunity doctors say is needed to protect against an outbreak."
slu|5 months ago "Among the states collecting data for the measles-mumps-rubella (MMR) vaccine, 68% of counties and jurisdictions now have immunization rates below 95% — the level of herd immunity doctors say is needed to protect against an outbreak."
slu|5 months ago