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Human papilloma pirus (HPV) is a sexually transmitted disease that affects millions, but those who have it may never know.

People may never experience any symptoms from this disease, but there's a chance some can and it may turn deadly.

A new cancer vaccine is hoping to change that, but it doesn't sit well with everyone.

"I first heard about it when I became sexually active," Bridget Daly said. "I knew it was a sexually transmitted disease and I'm not sure if I heard it from my doctor or a friend."

HPV is a disease that can cause genital warts or in some cases cervical cancer.

"When I first heard it was actually the cause of cervical cancer, I started to get freaked out about it," Daly said.

So when she heard about the new FDA-approved vaccine called Gardasil, she was definitely interested, especially since she has two young daughters.

"You want to do the best for your child no matter what," she said. "If you have little girls and that vaccine could prevent them from cancer … why not do it?"

Well, not everyone feels the way Daly does.

Some pro-abstinence groups fear that giving the vaccine to young people will cause them to become more promiscuous.

Others are concerned with the long-term effectiveness of the vaccine.

"We just need to gather more information before I start recommending it to all of my patients," said Dr. Jennifer Nevels with the Southwest College of Naturopathic Medicine. "I don't think it's a bad thing at this point, but there's a lot of unanswered questions."

Planned Parenthood Clinical Director Carol Bafaloukos believes this vaccine is a good thing, especially since it's trying to prevent a deadly cancer.

"We're not necessarily looking at the STD," Bafaloukos said. "We're looking at the STD that could be potentially cancerous. So if we could decrease the risk of cancer, that's what our goal would be."

Kelly, who did not want her last name used, wished a vaccine like this had been around years ago. She believes this might have helped her fight off the virus.

"You can't go back and fix it," Kelly said. "Once it's there, it's there. So why not try to prevent it? Don't be in the same position that I am."

The cost of the vaccine starts at $120.

And HPV doesn't just strike women. Men can also be carriers of the disease.