内容摘要：PRAGUE (AP) — The Czech Republic has accused China of being “responsible” for

PRAGUE (AP) — The Czech Republic has accused China of being “responsible” for

KENNEDY, at a news conference Wednesday: Studies show that autism rates in the U.S. were “1 in 10,000 when I was a kid” compared to a recent U.S. Centers for Disease Control and Prevention study that found it to be 1 in 31. He says that is evidence of an autism epidemic in the U.S. and that, “we know it’s an environmental exposure. It has to be.”THE FACTS: It’s true that in the 20th century, only 1 in 10,000 children were diagnosed with autism —- the diagnosis was rare and given only to kids with severe problems communicating or socializing and those with unusual, repetitive behaviors. But the term became shorthand for a group of milder, related conditions known as ″autism spectrum disorders,” and the number of kids labeled as having some form of autism began to balloon.

The term “epidemic” is widely used to describe surges in different health problems — like autism, obesity and gun violence, to name a few. But strictly speaking, “epidemic” is defined as a fast-spreading outbreak of disease, and there’s not good evidence that autism meets that definition.Health officials have largely attributed growing autism numbers to better recognition of cases, through wide screening and better diagnosis. Last week, the CDC saidThere are no blood or biologic tests for autism; it is diagnosed by making judgments about a child’s behavior. Research has looked at a variety of other possible explanations, including genetics, the age of the father, the weight of the mother and chemicals in the environment.

Prior to his rise to health secretary, Kennedy joined anti-vaccine advocates in claiming childhood vaccines are responsible for autism, but studies by the CDC and others have ruled that out. A fraudulent single study that claimed a link between the measles, mumps and rubella vaccine was later retracted by the journal that published it.Kennedy recently announced a major study into the cause of autism and told an April 10 Cabinet meeting: “By September we will know what has caused the autism epidemic and we’ll be able to eliminate those exposures.” But last week, he softened that to having ”some of the answers by September.”

— Mike Stobbe and Devi Shastri

KENNEDY, in interview with Sean Hannity that aired on Fox News on March 11: “There are adverse events from the vaccine. It does cause deaths every year. It causes — it causes all the illnesses that measles itself causes, encephalitis and blindness, et cetera. And so people ought to be able to make that choice for themselves.”While the room was abuzz with excitement that day, “he slept through the entire thing,” recalled study author Dr. Rebecca Ahrens-Nicklas, a gene therapy expert at CHOP.

After follow-up doses in March and April, KJ has been able to eat more normally and has recovered well from illnesses like colds, which can strain the body and exacerbate symptoms of CPS1. The 9 ½-month old also takes less medication.Considering his poor prognosis earlier, “any time we see even the smallest milestone that he’s meeting – like a little wave or rolling over – that’s a big moment for us,” his mother said.

Still, researchers caution that it’s only been a few months. They’ll need to watch him for years.“We’re still very much in the early stages of understanding what this medication may have done for KJ,” Ahrens-Nicklas said. “But every day, he’s showing us signs that he’s growing and thriving.”