HPV vaccine: 20 states that shun the shot

Is the HPV vaccine safe? Republican hopeful Michele Bachmann got some sharp jabs from scientists after claiming getting vaccinated could lead to mental retardation. The scientists say the vaccine is safe and highly effective at preventing infection with human papillomavirus, which spreads easily during sexual activity and can lead to cervical cancer.

One thing's for sure. The HPV vaccine is a lot more popular in some states than in others. Keep clicking to see the 20 states where teens are least likely to have gotten at least one dose of the vaccine (based on most recent data from the CDC)...

20. Montana

Montana kicks off the list of states with lowest rates of HPV vaccination. In the Treasure State, 45.5 percent of teens have received at least one dose of HPV vaccine.