What is a Bubonic Plague?

Plague is an infectious disease caused by a specific type of bacterium called Yersinia pestis.

What is a Bubonic Plague?
Table of Contents

About Bubonic Plague

 

  • Plague is an infectious disease caused by a specific type of bacterium called Yersinia pestis.
  • Y. pestis can affect humans and animals and is spread mainly by fleas.
  • Bubonic plague, also known as Black Death, is one type of plague. It gets its name from the swollen lymph nodes (buboes) caused by the disease.
  • The other types of plague are:
    • Septicemic plague, which happens when the infection goes all through the body.
    • Pneumonic plague, which happens when the lungs are infected.
  • Symptoms: Bubonic plague symptoms include
    • Sudden high fever and chills.
    • Pains in the areas of the abdomen, arms and legs.
    • Headaches.
    • Large and swollen lumps in the lymph nodes (buboes) that develop and leak pus.
  • Transmission:
    • Y. pestis is spread mostly by fleas on rodents and other animals
    • It is transmitted between animals and humans by the bite of infected fleas, direct contact with infected tissues, and inhalation of infected respiratory droplets.
    • It’s an example of a disease that can spread between animals and people (a zoonotic disease).
  • Treatment:
    • It can be treated and cured with antibiotics.
    • Antibiotics that treat bubonic plague include Ciprofloxacin, levofloxacin, moxifloxacin, Gentamicin and Doxycycline.
    • It can be fatal if it’s not treated.

 


Q1) What are Lymph nodes?

Lymph nodes, also known as lymph glands, are small, bean-shaped structures located throughout the body as part of the lymphatic system. The lymphatic system is a complex network of vessels, nodes, and organs that plays a crucial role in maintaining fluid balance, filtering out harmful substances, and supporting the immune system’s functions.

Source: China’s inner Mongolia records two cases of bubonic plague: What it is

Update Icon
Latest UPSC Exam 2026 Updates

Date IconLast updated on March, 2026

UPSC Final Result 2025 is now out.

→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.

Anuj Agnihotri secured AIR 1 in the UPSC Civil Services Examination 2025.

UPSC Marksheet 2025 Will be out soon.

UPSC Notification 2026 & UPSC IFoS Notification 2026 is now out on the official website at upsconline.nic.in.

UPSC Calendar 2026 has been released.

→ Check out the latest UPSC Syllabus 2026 here.

UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.

→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.

→ Prepare effectively with Vajiram & Ravi’s UPSC Prelims Test Series 2026 featuring full-length mock tests, detailed solutions, and performance analysis.

→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2026 for structured answer writing practice, expert evaluation, and exam-oriented feedback.

→ Join Vajiram & Ravi’s Best UPSC Mentorship Program for personalized guidance, strategy planning, and one-to-one support from experienced mentors.

Shakti Dubey secures AIR 1 in UPSC CSE Exam 2024.

→ Also check Best UPSC Coaching in India

Vajiram Content Team
Vajiram Content Team
UPSC GS Course 2026
UPSC GS Course 2026
₹1,75,000
Enroll Now
GS Foundation Course 2 Yrs
GS Foundation Course 2 Yrs
₹2,45,000
Enroll Now
UPSC Mentorship Program
UPSC Mentorship Program
₹85000
Enroll Now
UPSC Sureshot Mains Test Series
UPSC Sureshot Mains Test Series
₹19000
Enroll Now
Prelims Powerup Test Series
Prelims Powerup Test Series
₹8500
Enroll Now
Enquire Now