Which vaccines are important take when traveling to the United States?
Does each state have different vaccines?
There are no vaccination requirements for visitors entering the US; Loren has posted general vaccination schedules recommended by the CDC for people living in the US (and possibly, as a guideline for others).
However, for traveling to the US, there are no vaccination requirements, as stated plainly at the CDC website:
CDC Travelers’ Health provides information and health recommendations for US residents traveling internationally. If you live outside the United States and plan to travel here, please check resources in your own country for travel health information.
There are no vaccination requirements for visitors to the United States.
The Centers for Disease Control and Prevention (CDC) is the federal agency that oversees things like vaccinations and disease outbreaks throughout the US. They also provide guidelines for vaccination and preventive measures for dealing with diseases.
The Public Health Agency lists the following vaccinations to consider for travelling to the US:
The NHS (UK) recommends to get Tetanus shot on top of the normal vaccinations.
All those are just meant as suggestions and will depend on a lot of factors such as which vaccinations you already have, when you are travelling (you're unlikely to need a flu shot in summer) and how long you are travelling. The best would probably be to ask your GP.
Here are the CDC recommendations:
Note that some insurers cover the HPV vaccine past age 26.