There are four probable cases that have yet to be confirmed, officials said.
People infected range in age from 8 months to 55 years old.
The new cases include clusters of two or more cases among students in Mercer, Monmouth, Morris and Hudson counties, Health Commissioner Heather Howard said.
"We will continue to work closely with local health departments to identify potential clusters and to monitor the severity of disease as well as provide treatment and surveillance guidance consistent with the CDC," Howard said.
The symptoms of swine flu are similar to those of seasonal flu and include fever, lack of appetite, coughing and fatigue. There have been no swine flu deaths in New Jersey.
The World Health Organization, as of Friday, had tallied more than 12,000 swine flu cases worldwide, with more than half of them in the United States. It counted at least 86 deaths, with 75 of those in Mexico.
Several schools have been closed as a result of the swine flu.
In West New York, the Pretty Faces Day Care Center will remain closed until June 1, so that it can be sanitized after two preschoolers became ill last weekend and were determined to have the flu. They have been out of school since May 18.
Schools in Hawthorne Borough were closed Tuesday so they could be disinfected after officials learned of a possible case of swine flu there.
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ADDITIONAL RESOURCES
For facts about influenza, and more information about swine flu, please visit the Health Department and CDC websites. Some specific resources:
From New York City Health Department
Facts about flu
http://www.nyc.gov/html/doh/html/cd/cdinflu.shtml
From Centers for Disease Control and Prevention
General information about swine flu
http://www.cdc.gov/swineflu/general_info.htm
Swine Flu Case Definitions
http://www.cdc.gov/swineflu/casedef_swineflu.htm
Swine Flu Infection Control and Patient Care
http://www.cdc.gov/swineflu/guidelines_infection_control.htm
Preventing the Flu
http://www.cdc.gov/flu/protect/habits.htm
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