Graduates of Bayshore High School in Bradenton who are struggling with health concerns were invited inside the department of health's orange bus on Saturday and asked to fill out forms regarding their medical history. 

"We wanted to make sure we have a comprehensive data set for this study," said Carrie Harter with the Department of Health in Manatee County. 

They have been collecting patient data since November and will be through March. So far, they have heard from 144 alumni who are battling cancer or another related illness. Soon, the data will be analyzed by experts with the Florida Cancer Data Registry to determine if the cancer rates in the Bayshore area are higher than average. 

Cheryl Josza has led the push for answers since her sister passed away from cancer in 1999. 

She's compiled a list of more than 300 alumni who have battled the disease. She's concerned about the health department study saying the school district only notified graduates from 1985 through the present to report their medical history, while her list starts in 1962. 

"I'm happy to see that they're actually collecting the data but it's been very frustrating," she said. 

After the March deadline, the data will be sent to Tallahassee for analysis, but it could take six months for that report to be completed. 

If there is evidence of a cancer cluster, they will follow CDC guidelines and a full investigation into what caused it will begin. 

Over the summer, the groundwater at the high school was tested by an independent firm, and showed no signs of contamination.