The children have not gone to school since returning, according to a Corzine administration official who spoke on condition on anonymity because the official was not authorized to speak about the cases.
The other two confirmed cases involve unrelated women - a 43-year-old from Monmouth County and a 22-year-old woman from Bergen County. One recently traveled to Mexico, the other to California.
Mexico is considered the epicenter of the swine flu outbreak. California has several confirmed cases.
The first five suspected New Jersey cases were announced on Monday and the CDC confirmed the cases on Thursday, said Health Department spokeswoman Donna Leusner.
The department has launched a stepped-up monitoring program involving doctors and hospitals statewide, Deputy Commissioner Dr. Susan Walsh said. The department also has asked schools and day care centers to be watchful for children with influenza-like symptoms and report them to their local health departments.
New Jersey has stockpiled some 800,000 doses of Tamiflu and other antiviral medications.
The symptoms of swine flu are similar to those of seasonal flu and include fever, lack of appetite, coughing and fatigue.
The U.S. cases have appeared to be much milder than the Mexican cases, although federal officials have said they expect to see more U.S. deaths from the virus.
The state has set up a 24-hour hot line for worried residents to get answers.
The number is 866-321-9571.
RELATED LINK: New Jersey Health Department
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RELATED INFORMATION:
6abc.com's Swine Flu Channel
RELATED INFORMATION:
FAQs about swine flu
Additional swine flu resources
Transcript of 6abc.com's swine flu chat with local experts
RELATED LINKS:
CDC Swine Flu site
World Health Organization
RELATED INTERACTIVE:
Swine flu cases around the world
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