A serious infectious disease that is caused by the bacterium. It mainly affects rodents but can be transmitted to humans by flea bites. There are 2 main types: bubonic and pneumonic plague. Bubonic plague is characterized by swollen lymph glands (called “buboes”). Symptoms usually start 2–5 days after infection, with fever, shivering, and severe headache. Soon, the smooth, red, intensely painful buboes appear, usually in the groin. There may be bleeding into the skin around the buboes, causing dark patches. Pneumonic plague affects the lungs and can spread from person to person in infected droplets expelled during coughing. Symptoms are severe coughing that produces a bloody, frothy sputum and laboured breathing. Without early treatment, death is almost inevitable. A sample of fluid from a bubo, or a sputum sample, is taken to confirm the diagnosis. Possible treatments include streptomycin and tetracycline drugs.
Plague |
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