2012 · Paper V · 10 marksFrequently asked

What is hydrophobia? how is it caused? What remedial or precautionary measures are to be taken?

In short

Hydrophobia, or rabies, is a fatal disease caused by the neurotropic rabies virus, transmitted through the saliva of infected animals, mainly dogs, and travelling along nerves to cause encephalitis and fear of water. Prevention relies on immediate wound washing, rabies vaccine and immunoglobulin, and mass dog vaccination.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
Hydrophobia, or rabies, is a fatal viral disease affecting the central nervous system, with dog bites as the main transmission route in India, including Andhra Pradesh.
Institutional Framework
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National Rabies Control Programme

Provides guidelines for vaccination and post-exposure prophylaxis, implemented by state bodies like Andhra Pradesh’s Directorate of Public Health and Family Welfare.

•

Surveillance and One Health

Coordination between human and veterinary sectors under One Health ensures effective tracking and control of rabies cases.

Causes and Transmission
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Rabies Virus and Pathophysiology

The virus transmits via saliva of infected dogs, traveling through nerves to cause encephalitis and hydrophobia symptoms.

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Animal Reservoirs

Stray dogs in Andhra Pradesh, especially in Rayalaseema and coastal districts, are primary reservoirs; other mammals also contribute.

Remedial and Preventive Measures
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Post-Exposure Prophylaxis (PEP)

Immediate wound washing and timely vaccine plus immunoglobulin administration prevent disease after exposure.

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Animal Vaccination Campaigns

Mass dog vaccination and sterilization in urban areas like Visakhapatnam reduce virus reservoirs.

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Public Awareness

State campaigns educate on bite management and responsible pet ownership.

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One Health Collaboration

Integration of health, veterinary, and municipal services enhances surveillance and outbreak response.

Way Forward
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Strengthen Surveillance and Vaccination

Enhance data systems and expand vaccination in urban and rural Andhra Pradesh.

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Increase Awareness and Coordination

Use media and community workers to promote prevention; institutionalize One Health coordination.

Conclusion
Hydrophobia’s fatality can be prevented by strengthening institutional capacity, vaccination, and community awareness in Andhra Pradesh, aligning with SDG 3 for health.

This model answer is indicative and the model can make mistakes; please verify key facts independently.

Hand-drawn diagram: How hydrophobia develops. How hydrophobia develops. Flow: Bite by infected dog, saliva → Virus travels along peripheral nerves → Reaches central nervous system → Encephalitis: fear of water, paralysis
Diagram: How hydrophobia develops

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Human diseases; genetic engineering basics; biotechnology in agriculture; vaccines54 questions

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Question from the official APPSC Group-I Mains 2012 paper. Answer written by Ghissu's engine and checked against our editorial standards. Found an error? Tell us and we correct it within 48 hours.

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