The Rajasthan government also imposed a curfew within 1-km of their residence in Jhunjhunu.
Chief Minister Ashok Gehlot after holding a review meeting directed to impose the restrictions to curb the spread of the infection.
The patients had returned from Italy on March 8.
Their samples were sent to Jaipur's SMS Hospital for testing.
Rajasthan Health Minister Dr Raghu Sharma said they are being brought to Jaipur for treatment. He said all those people who came in their contact will be screened.