The latest Ebola patient potentially came into contact with dozens of other passengers.
The outbreak might not stop at "just one case," the CDC director said.
The Texas Department of State Health Services said it was casting a "wide net."
Health officials said five area children had come into contact with an Ebola patient.
Denver and Kansas City, Mo., have been eliminated, the RNC said.
All of the workers are being monitored daily for symptoms.
The individuals are not currently exhibiting Ebola symptoms.
The infected patient in Texas had contact with nearly 20 people last weekend.
"It was clearly political,” official says of the GOP's decision.
Obama will meet volunteers working on ObamaCare enrollment and outreach.