City health officials say a woman who was treated and released from a Brooklyn hospital Tuesday may have contracted swine flu.

Mayor Michael Bloomberg says the woman doesn't seem to have a link to the Queens school where dozens of students fell ill. However, Bloomberg says the woman has been in contact with someone who recently traveled to Mexico, where the swine flu crisis originated.

There are at least 64 confirmed cases of swine flu in the United States. Swine flu is suspected in up to 152 deaths in Mexico, with 20 deaths confirmed there so far.

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