Two children from Hillsborough County in New Hampshire have been identified as having Enterovirus-D68, the first cases in the state.
The respiratory virus is spreading across the United States.
These two children were briefly hospitalized, but have since been discharged without reported complications, according to the New Hampshire Department of Health and Human Services.
Approximately 40 states have now reported cases of EV-D68, which is mainly affecting children.
The illness appears to be causing a respiratory illness, including difficulty breathing and wheezing. Some patients, but not all, also have a fever. Those with a history of asthma or wheezing may be at an increased risk for complications.
Most people infected with an Enterovirus experience no or few symptoms.
There are many types of Enteroviruses, and EV-D68 is one strain that has not been commonly reported previously.
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There is no vaccine to prevent EV-D68 infections.
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