The plague rarely affects humans, though the US sees about 7 cases a year. Here’s why


Colorado health officials have confirmed a human case of the plague, a rare bacterial infection easily treated with antibiotics. The plague is transmitted through infected fleas and affects rodents, pets, and humans. Symptoms include swollen lymph nodes, high fever, and chills. Cases are most common in rural areas of the U.S. and worldwide in countries like Congo and Madagascar. Treatment involves early antibiotic therapy, and prevention includes keeping areas free of rodents and ensuring pets are flea-free. A vaccine is available but only recommended for high-risk individuals. Research on additional vaccines is limited due to the rarity of bubonic plague cases.

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