PORTLAND, Maine (AP) — Maine health officials are investigating a case of a young boy coming down with what is being described as an unusual strain of influenza.

The Maine Center for Disease Control and Prevention says the 7- or 8-year-old boy from Cumberland County came down with flu-like symptoms in early October, not long after being exposed to pigs at an agricultural fair.

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State Epidemiologist Stephen Sears says the H3N2 swine-origin strain of influenza was confirmed by the U.S. Centers for Disease Control as genetically similar to a strain identified in three cases in Pennsylvania and one case in Indiana.

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Sears said the boy was treated by his family doctor and is back up and playing. He said health experts don’t expect the new strain to pose a widespread threat.

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