Doctor Online

How the plague is transmitted from fleas to humans?

Many ask, "is bubonic plague still around today?" The answer is yes. Though rare, this historic disease still poses a threat in some regions. This guide explains what you need to know to stay informed and safe.

What are the main causes of Plague?

  • The plague is caused by the bacterium Yersinia pestis, the same agent that caused the Black Death, a devastating pandemic in history.
  • The disease is primarily transmitted through the bite of an infected bubonic plague flea that has fed on a rodent like a rat or squirrel.
  • How is the bubonic plague transmitted otherwise? Through contact with infected animal tissues or inhaling droplets from a person with pneumonic plague.
Diagram showing how the bubonic plague is transmitted
Diagram showing how the bubonic plague is transmitted

Key symptoms of Plague to watch for

  • Classic bubonic plague symptoms include sudden fever, weakness, and painful, swollen lymph nodes called buboes that develop near the flea bite.
  • These painful bubonic plague sores (buboes) are a hallmark sign, typically appearing in the groin, armpit, or neck region.
  • In pneumonic plague vs bubonic plague, the pneumonic form directly infects the lungs, causes severe pneumonia, and can spread between people.

How can you prevent Plague effectively?

  • The best prevention of the plague is reducing rodent habitats around your home by removing potential food sources and shelter.
  • Use an insect repellent with DEET to prevent flea bites and use appropriate flea control products on your pets, especially in endemic areas.
  • Avoid handling sick or dead animals, particularly rodents, and wear gloves if you must handle them for safe disposal.

>>> Don't miss: Colorado tick fever - A viral infection from the Rocky Mountain wood tick

Illustrated illustrations Plague

Chart comparing pneumonic plague vs bubonic plague
Chart comparing pneumonic plague vs bubonic plague
Map showing where bubonic plague is still around today
Map showing where bubonic plague is still around today
A medical drawing of typical bubonic plague sores (buboes)
A medical drawing of typical bubonic plague sores (buboes)
The Yersinia pestis bacterium that caused the Black Death
The Yersinia pestis bacterium that caused the Black Death
Modern antibiotic options for bubonic plague treatment
Modern antibiotic options for bubonic plague treatment
Scientist developing a new bubonic plague vaccine
Scientist developing a new bubonic plague vaccine

>>> See more: Crimean-congo hemorrhagic fever - A widespread and deadly virus

While no common bubonic plague vaccine exists, the disease is treatable. Modern bubonic plague treatment with antibiotics is effective if started early. If in a risk area with symptoms, seek medical care immediately.

>>> Find out together: Heartland virus disease - An emerging illness from the lone star tick