A growing number of parents say they do not plan to have their daughters receive the vaccine against human papilloma virus even though multiple studies show the vaccine is not tied to any serious side effects.

The CDC recommends all boys and girls get the HPV vaccine as pre-teens.

But a national survey finds 44 percent of parents whose daughters are not up to date on their HPV immunization don’t plan to have their daughters get the shots.

About one in six parents cited safety concerns about the HPV vaccine as the reason.