Parents are navigating mixed messaging about childhood vaccinations from federal and state officials.

The impact of the mixed messaging is being seen inside doctors offices like pediatrician David Butler's office in Fort Myers, Florida.

First-time father Brandon Gonsalves, who is also a nurse practitioner, told Butler he's "not too sure yet" what his plans are for future vaccinations for his newborn. Gonsalves decided against vaccinating his baby for hepatitis B, which the Centers for Disease Control and Prevention currently recommends be done at birth.

Last week, the panel that advises the CDC on vaccines delayed a vote that would have recommended moving the hepatitis B shot from birth to one month.

Hepatitis B , a liver infection, can cause long-term health problems such as

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