The Watertown school district is battling an outbreak of hand, foot and mouth disease.
School officials sent a letter to parents late Thursday. However, some believe that many questions have been left unanswered.
Families are concerned by the disease.
"Its scary, you don't know what's going to happen and become of it," said Laurie Germain of Watertown.
Germain said her two granddaughters, who attend Polk School, stayed at home after they heard about the outbreak.
Watertown's superintendent said there have been 15 confirmed cases in four of its five schools.
The only school that has not been impacted is Judson Elementary.
Earlier in the week Derby High School announced it had to postpone its football game after a number of its students came down hand, foot and mouth as well.
The infection causes a blister-like rash. It is spread by coughing, sneezing and coming into contact with someone who is contaminated.
It can also be spread by touching a contaminated surface.
Watertown school officials said they are disinfecting surfaces on chairs, desks, door handles and railings.
Resident Jamie Langlois said her daughter, now an adult, had caught the disease when she was younger.
"My first thought was make sure I have a talk with my daughter when she came home, update her, educate her and how to help prevent it, because it's very contagious," said Jamie Langlois.
Students are reminded to wash their hands frequently and not share personal items like water bottles and eating utensils.
Officials said children diagnosed with the virus will need a doctors note before they are cleared to return to school.
They will continue to disinfect every school until the issue is resolved.
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