The 70% Question: Is Vaccination Coverage Alone Enough to Control Rabies?

If 70% of dogs in an area are vaccinated, can veterinarians consider rabies control on track? 

The 70% threshold is widely recognized as an important target for dog vaccination programmes. Evidence suggests that vaccinating 70% or more of the dog population can reduce rabies transmission and human exposure^[2]˒^[3]. 

But there is an important catch: 70% on paper does not necessarily mean 70% protection on the ground. 

What does “70% coverage” really mean? 

Imagine a vaccination campaign reports that 70% of dogs have been vaccinated. 

Now ask a few practical questions. 

Were free-ranging dogs included? Were rural areas covered? Are the vaccination records reliable? Were vaccines stored and handled appropriately? Were dogs identified so that previously vaccinated animals were not counted repeatedly? 

These details matter. 

Effective rabies control depends not only on vaccination coverage but also on the quality and efficiency of vaccination programmes. Identification and record keeping, appropriate vaccine storage and handling, and follow-up vaccination are important components of the strategy^[3]. 

So, for the veterinarian coordinating or participating in a vaccination programme, the real question is not simply “How many vaccines were administered?” 

It is “How confident are we about the population that has actually been protected?” 

The hidden gap: owned versus free-ranging dogs 

One challenge is that vaccination coverage may not be evenly distributed across a population. 

Urban and rural areas can have very different levels of immunization, creating gaps in overall protection². Free-ranging and stray dogs may also be more difficult to capture and vaccinate effectively. 

This is where dog population management becomes relevant. 

Sterilization programmes, shelters, adoption initiatives and responsible ownership can complement vaccination efforts². CNVR programmes and appropriate waste management can also contribute to broader rabies risk reduction^[3]. 

The objective is not simply to vaccinate more dogs. It is to create a population in which vaccinated animals remain a sufficiently large and sustainable proportion of the dog population. 

What happens when vaccination is treated in isolation? 

A vaccination campaign may achieve impressive numbers but still struggle to interrupt transmission if other factors are ignored. 

Dog population dynamics, gaps between urban and rural coverage, inadequate surveillance and limited resources can all affect the outcome^[2]˒^[3]. 

This is also why culling is not considered an adequate substitute for sustained vaccination. Removing dogs can create ecological vacancies that may subsequently be occupied by susceptible animals, potentially allowing transmission to continue^[2]. 

The lesson is straightforward: population management and vaccination need to work together, rather than being treated as separate interventions. 

Don't forget the animals outside the campaign 

Rabies control strategies often focus heavily on dogs—and appropriately so, given their role as important maintenance hosts for canine rabies^[2]. 

But other animals can matter too. 

Domestic cats and wildlife can participate in rabies transmission cycles, with domestic and wild animals forming interconnected urban and sylvatic cycles^[2]. The review's description of the Baiyun case, where a cat was implicated in a human rabies exposure, illustrates why surveillance should not become exclusively dog-focused^[2]. 

For veterinarians, this means keeping the broader animal population in view when assessing local rabies risk. 

Vaccination numbers need surveillance behind them 

A vaccination campaign tells us what was done. 

Surveillance helps tell us whether it is working. 

Systematic information on dog populations, vaccination records, suspected and confirmed rabies cases and animal-human population patterns can help identify gaps and guide control strategies^[3]. 

Laboratory capacity is equally important. Limited diagnostic facilities, particularly in rural and underserved areas, can contribute to under-reporting and weaken the ability to understand the true epidemiological picture^[2]˒^[3]. 

Without reliable surveillance, a high reported vaccination coverage may provide a false sense of security. 

So, is 70% enough? 

It is an important target—but it should not be treated as the finish line. 

Effective rabies control requires high vaccination coverage alongside reliable vaccination practices, dog population management, surveillance, laboratory support, accurate records and coordination between sectors^[2]˒^[3]. 

For veterinarians, this changes the way vaccination success can be viewed. 

The goal is not simply to count vaccinated dogs. 

It is to build and maintain a sufficiently protected animal population while continuously looking for the gaps that allow transmission to persist. 

That is where vaccination becomes a rabies-control strategy rather than just a vaccination campaign.

References:

1. Acharya KP, Acharya N, Phuyal S, Upadhyaya M, Lasee S. One-health approach: A best possible way to control rabies. One Health. 2020 Dec 1;10:100161. https://doi.org/10.1016/j.onehlt.2020.100161
2. Zha R, Lu J, Chen J, Guo C, Lu J. Exploring one health-based strategies for rabies elimination: Overview and future prospects. PLOS Neglected Tropical Diseases. 2025 Jun 18;19(6):e0013159. https://doi.org/10.1371/journal.pntd.0013159
3. Acharya KP, Subedi D, Wilson RT. Rabies control in South Asia requires a One Health approach. One health. 2021 Jun 1;12:100215. https://doi.org/10.1016/j.onehlt.2021.100215