What is Plague?
Plague is a serious infectious disease caused by the bacterium Yersinia pestis. It primarily affects rodents but can spread to humans, causing severe illness. Historically, plague has caused widespread epidemics.

Causes?

What causes Plague?
Plague is caused by the bacterium Yersinia pestis, which is typically transmitted to humans through:

• Bites from infected fleas carried by rodents
• Direct contact with infected animals or materials
• Inhalation of respiratory droplets from a person or animal with pneumonic plague

Symptoms?

What are the symptoms of Plague?
Symptoms vary depending on the form of plague:

Bubonic plague:

• Sudden fever and chills
• Headache
• Fatigue and muscle aches
• Swollen, painful lymph nodes called buboes (usually in groin, armpits, or neck)

Septicemic plague:

• Fever, chills, and weakness
• Abdominal pain, shock
• Bleeding into skin and other organs
• Skin may turn black (gangrene)

Pneumonic plague:

• Fever, headache, weakness
• Rapidly developing pneumonia with cough, chest pain, and difficulty breathing
• Cough may produce bloody or watery sputum

Diagnosis?

How is Plague diagnosed?

• Clinical evaluation of symptoms and exposure history
• Laboratory tests including blood, sputum, or lymph node aspirate cultures
• PCR and serologic tests to detect Yersinia pestis

Treatment?

How is Plague treated?

• Early treatment with antibiotics such as streptomycin, gentamicin, doxycycline, or ciprofloxacin
• Supportive care including fluids and oxygen if needed
• Isolation of patients with pneumonic plague to prevent spread

Prognosis?

What is the outlook for someone with Plague?
With prompt antibiotic treatment, the prognosis is good. Without treatment, plague can be fatal, especially pneumonic and septicemic forms.

Prevention?

How can Plague be prevented?

• Avoid contact with rodents and fleas in endemic areas
• Use insect repellents and wear protective clothing
• Control rodent populations around homes
• Promptly treat suspected cases to prevent spread
• Public health measures including surveillance and education

Support and Management?

How can individuals manage Plague?

• Seek immediate medical attention if symptoms develop after potential exposure
• Complete the full course of prescribed antibiotics
• Follow public health guidelines during outbreaks
• Educate communities in endemic regions about prevention