The Durango Herald reports the girl was flown to the hospital Aug. 25 and is in stable condition. Officials believe she contracted the plague during a family outing at a campground northwest of Pagosa Springs.
Symptoms of bubonic plague in humans begin two to six days after a bite from an infected flea, rodent or cat. Typical symptoms include swollen lymph nodes, sudden fever or chills, severe headache and extreme exhaustion.
The Centers for Disease Control and Prevention say an average of seven cases of bubonic plague are reported in the United States per year.
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