A major study released Thursday says there is no link between autism and the measles vaccine. It's one of many studies with similar results.

But not everyone agrees with the findings, including autism experts now holding their annual conference in Austin. Holly Robinson Peete served as the conference’s keynote speaker.

A lot of people know Peete from her television acting career -- she's also married to former NFL quarterback Rodney Peete. The couple's 10-year-old son is autistic.

Peete has made it her mission to spread the word about autism and what she believes made her son sick. She says her son developed autism after receiving the measles, mumps and rubella – MMR - vaccine.

She says a new study -- released by Columbia University, the Centers for Disease Control and Prevention, Massachusetts General Hospital and Trinity College in Ireland -- won't change that.

“My study is my kid -- I took him to get this MMR shot, and he was never the same after that,” said Peete.

In 1998, a British study suggested the MMR vaccine -- which contains the live virus -- can cause inflammation in the intestines, which may then allow toxins to leak into the blood stream, eventually damaging the nervous system and brain, causing autism.

The new study says that hypothesis is not true.

Doctors were looking for traces of measles still in the digestive track. Their results -- 6 percent, or two of the 38 children tested -- showed signs of measles still in their system.

One of them was autistic, the other was not.

“If every child in the united states is going to get that measles virus vaccine, if they're going to get that shot, then 6 percent is a giant number of the kids we have in our country,” said Phillip DeMio, MD, chief medical officer for USAAA.

While the debate continues, parents of autistic children -- like Wen and Susan Chen of Austin -- look for new ways to overcome autism.

“We're just so happy that this is always here for us,” said Chen.

The conference also highlights the latest in autism treatment, like the therapeutic use of these hyperbaric chambers.

“You get to walk around here, I'm about to go home with the biggest goodie bag you've ever seen in your life!” said Peete

The conference runs through Sunday at the Airport Hilton.