Study of 50000 dogs says vaccines, not culling, will stop rabies

Subject: Science and Tech

Sec: Health

Context:

A 16-year study in Tanzania led by Professor Katie Hampson delves into rabies transmission dynamics among dogs.

What is Rabies?

Rabies is a viral disease that attacks the central nervous system, causing brain inflammation and eventually leading to death if left untreated.
It is transmitted through the bite of an infected animal, most commonly dogs.
Rabies is almost always fatal, but it can be prevented through vaccination.

Key findings of the study:

The comprehensive study spans 15 years, involving data collection on 50,000 dogs in the Serengeti district.
Rabies persists locally, with a few “super-spreader” dogs travelling long distances, contributing to virus dissemination.
Mass dog-vaccination, not culling, emerges as the most effective strategy against rabies spread.
Rabies differs from typical infectious diseases as it spreads solely through bites, allowing for localized transmission.

Implications and Vaccination Advocacy:

Traditional infectious disease models struggle to predict rabies spread due to its local nature.
Lower dog density doesn’t necessarily reduce transmission, challenging the efficacy of culling.
Large-scale dog vaccination is crucial for preventing rabies spread, contrasting with ineffective culling strategies.

Global Perspective and Vaccine Inequity:

While high-income countries have successfully used vaccination to eliminate rabies, equitable vaccine distribution remains a challenge.
The study advocates for prioritizing mass dog-vaccination globally to protect both canine and human populations from rabies.
In countries like India, where rabies is prevalent, mass sterilization efforts overshadow crucial vaccination initiatives.

Initiatives taken by Government of India

National Rabies Control Programme: This programme is being restructured as Integrated National Rabies Control Programme under ‘One Health Approach’, with a aim to provide vaccination to stray dogs and free vaccines through Government hospitals.