Two persons, who returned from Dubai on Monday, were quarantined at the airport in Jaipur after they showed suspected swine flu symptoms.
The two were examined by a medical team at Sanganer Airport and their samples sent to NICD (National Institute of Communicable Disease), official sources said on Monday.
Five other persons have been admitted to a hospital with suspected symptoms of the disease.
Shanti, 25, and three minors - Lalita, Mahendra and Ravindra - of Chandwaji town near here were hospitalised on Saturday after they complained of flu-like symptoms, the sources said.
"Their samples were sent to NICD for testing yesterday and report is awaited," Chief Medical Health Officer (II) Yatindra Singh told PTI.
Report of another person Ramniwas, who returned from Muscat recently and showed flu-like symptoms, is awaited, he said.
Meanwhile, samples of the family members of the four confirmed cases have also been sent for examination.