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Leptospirosis

Nov. 23, 2025

Recently, Jamaica has declared an outbreak of leptospirosis following the devastation from Hurricane Melissa.

About Leptospirosis:

  • It is a fatal bacterial disease.
  • Cause: The disease is caused by a bacterium called Leptospira interrogans, or Leptospira.
  • The bacteria can infect humans by entering the body through tiny cracks and wounds in the soles of the feet. 
  • Prevalence: It is more prevalent in warm, humid countries and both urban and rural areas.
  • Transmission of Leptospirosis
    • It is a contagious disease in animals but is occasionally transmitted to humans in certain environmental conditions.
    • The carriers of the disease can be either wild or domestic animals, including rodents, cattle, pigs, and dogs.
    • The cycle of disease transmission begins with the shedding of leptospira, usually in the urine of infected animals.
    • Infected animals can continue to excrete the bacteria into their surroundings for a few months, but sometimes up to several years.
  • Leptospirosis may occur in two phases
    • After the first phase (symptoms: fever, chills, headache, muscle aches, vomiting, or diarrhoea) the patient may recover for a time but become ill again.
    • If a second phase occurs, it is more severe; the person may have kidney or liver failure or meningitis.
  • Treatment: It can be treated with antibiotics.

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