Last Updated:
The study evaluated various public health interventions between 2026 and 2035 to determine the fastest path towards zero human rabies deaths in Kerala
The study’s mathematical models demonstrate that vaccinating 70 per cent of Kerala’s dog population would reduce human rabies fatalities to near zero within approximately three years. Representational image: PTI
Mass canine vaccination—rather than introducing routine pre-exposure prophylaxis (PrEP) for children—could be the most effective and economically viable strategy to eliminate human rabies deaths.
The breakthrough findings, published in The Lancet Regional Health – Southeast Asia, stem from a ten-year cost-effectiveness study conducted by the University of Glasgow alongside the London School of EconomicsKerala University of Health Sciences, and state health directorates.
Why Childhood Rabies Vaccines Fall Short on Impact
The study evaluated various public health interventions between 2026 and 2035 to determine the fastest path towards zero human rabies deaths in Kerala.
- High Cost, Minimal Returns: Rolling out routine pre-exposure rabies vaccines for all children in Kerala would cost an estimated additional $10 million (Rs 83+ crore) while preventing fewer than 10 additional human deaths over a decade.
- Strong Existing Treatment Infrastructure: Because Kerala already boasts strong public access to post-exposure prophylaxis (PEP) after animal bites, adding population-wide childhood immunisation provides negligible incremental protection.
- Targeted PrEP Exceptions: Researchers noted that childhood PrEP remains valuable only for isolated, high-risk, or remote tribal communities with delayed access to emergency healthcare facilities.
Stopping Transmission at the Source
In contrast, expanding dog vaccination campaigns delivers dramatically higher survival outcomes across whole communities at a fraction of the cost.
- The 70 Per Cent Threshold: The study’s mathematical models demonstrate that vaccinating 70 per cent of Kerala’s dog population would reduce human rabies fatalities to near zero within approximately three years.
- Saving Millions with Shorter Regimens: Switching to the World Health Organization’s recommended one-week post-exposure regimen for bite victims could save the state $6.3 million (Rs 58 crore) over 10 years without compromising patient safety.
The Hidden Unowned Dog Census Problem
A critical hurdle identified by the research team is that Kerala’s unowned street dog population may be drastically higher than official census records indicate.
Evidence suggests the free-roaming dog population could be up to five times larger than reported, bringing the actual total to roughly 2.3 million dogs statewide. Underestimating stray numbers means previous vaccination drives reached far smaller percentages of the animal host reservoir than intended, allowing the virus to persist despite heavy healthcare investments.
Quick Answers
Ask News18Mass canine vaccination is considered the most effective and economically viable strategy to eliminate human rabies deaths in Kerala, rather than routine pre-exposure prophylaxis for children.
Ask News18About the Author
Pathikrit Sen Gupta is a Senior Associate Editor with News18.com and likes to cut a long story short. He writes sporadically on Politics, Sports, Global Affairs, Space, Entertainment, And Food. He tra…Read More
September 10, 2026, 04:43 IST
Read More
Source link
[ad_3]
