UPSC Notes

Zoonotic Diseases and Emerging Infectious Diseases

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Critical for public health policy, pandemic preparedness, environmental conservation, and understanding human-animal-environment interfaces.

Zoonotic diseases are infections naturally transmissible from animals to humans, often emerging due to ecological changes, human-animal interaction, and climate change. Emerging infectious diseases are new infections or those whose incidence has significantly increased in recent decades.

Phase IIStatic core

Facts & tables

Key facts

Definition

Diseases transmitted from animals to humans, often new or rapidly increasing in incidence.

Causative Agent

Viruses (e.g., Nipah, Avian Influenza), bacteria, parasites, fungi.

Transmission Factors

Human encroachment into wildlife habitats, consumption of contaminated food/water, direct contact with infected animals.

Global Impact

Potential for widespread outbreaks and pandemics, significant public health and economic burden.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaMicrobiology & Epidemiology
Conceptual areaScience & Technology
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Conceptual understanding

Quick revision

  • Definition: Animal-to-human transmission.
  • Drivers: Habitat encroachment, climate change.
  • Examples: Nipah, Avian Influenza.
  • Impact: Public health crises, pandemics.
  • WHO role: Priority pathogen classification.

High-confidence PYQs

Topic timeline

Microbiology & EpidemiologyScience & Technology

Primed to treat: On Kerala and Nipah

17 Jun 2026 · Zoonotic diseases are animal-to-human infections, often emerging due to ecological shifts. Nipah virus is a prime example, classified by WHO as a priority pathogen due to its lethality and pandemic potential. Understanding their drivers and transmission is crucial for global health security.

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Related topics

Current topic

Zoonotic Diseases and Emerging Infectious Diseases

Practice writing on this topic

UPSC has asked 8 linked questions on Zoonotic Diseases and Emerging Infectious Diseases in Mains. Write an answer to one — and get it evaluated.