HARRISBURG, Pa. (WHTM) -- Childhood lead poisoning — it’s what healthcare professionals, state representatives and other advocates say is an epidemic throughout the Commonwealth.

It’s also something that’s believed could be prevented with more testing.

“So, my son was typical,” said Dr. Karalyn McGrorty Derstine. “He was developmentally appropriate hitting all the milestones. And just after his first birthday, he started to regress.”

After changing pediatricians and several tests, McGrorty Derstine learned her son had lead poisoning.

He developed lead poisoning after being exposed to lead inside their own Montgomery County home.

A similar situation for many Pennsylvania families — including State Rep. Shelby Labs of Bucks County.

“I have two young daughters. When my oldest daughter w

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