(CNN) About 10 people who were aboard an international flight that landed Wednesday at New York's John F. Kennedy Airport are being evaluated at a hospital and tested for respiratory illness, officials said.

The cause of the illness on Emirates Flight 203 is "probably influenza," New York City acting Health Commissioner Dr. Oxiris Barbot told reporters.

She said doctors will know more when they get the results of respiratory tests done on the three passengers and seven crew members late Wednesday.

About 106 of the more than 500 people on the flight, which originated in Dubai and landed just after 9 a.m., reported symptoms like coughing, fever or vomiting, she said.

All the passengers were screened by officials from the Centers for Disease Control and Prevention, as were nine other people at the busy airport in the borough of Queens. Most passengers were cleared to continue their travels.

Read More