U.S. Ebola Case: Fear, Frustration Grow

America's first diagnosed Ebola victim is contained, but three things are still spreading: fear, frustration and the search for his contacts.

While Thomas Eric Duncan remains in critical condition at a Dallas hospital, some parents are scared to take their kids to the school that his girlfriend's children attended.

Others are upset at the hospital where Duncan first sought care, which sent him home and raised the possibility he could infect others for at least two additional days.

As the search continues for those Duncan had contact with, here's the latest on how the case is affecting others:

'I just got scared'

Duncan was in Dallas visiting his girlfriend, Liberian community leader Stanley Gaye said.

Among the people he came in contact with, Gaye said: his girlfriend's five children.

Dallas Independent School District Superintendent Mike Miles said the patient came in contact with five students who attended four different schools in the area.

Sam Tasby Middle School is one of those schools.

"I just got scared because I thought that that kid came to that school and probably got contact with him," said Nellie Catalan, whose child attends the school.

"I know it doesn't get (spread) by the air, but you never know."

More than 3,500 students attend the four schools. Each is getting cleaned and sanitized over the next few days.

Student Denise Trujillo said she's still worried.

"I don't feel like going to school tomorrow," she said.

While the five students who were near Duncan are staying home and being monitored, their schools will remain open.

See more on this developing story on CNN.com