Imagine a world where even the most timid creatures can receive vital vaccinations without fear or trauma. This innovative idea has taken shape in the form of a robo-vaccination machine, a potential game-changer in the battle against bovine TB.
Our story begins with a shy tiger named Cinta at London Zoo. Keepers faced a challenge: how to vaccinate her without causing distress. Enter Tony Cholerton, a zookeeper with a unique skill set. Having previously worked as a motorcycle engineer, Cholerton invented Robovacc, a machine that could administer jabs remotely, eliminating the need for human presence.
The results were remarkable. Controlled from an adjacent room, Cholerton successfully vaccinated Cinta while she was feeding. She barely paused, continuing her meal calmly after the brief needle prick. This invention has the potential to revolutionize wildlife conservation, especially in addressing the complex issue of bovine TB transmission from badgers to cattle.
Badgers have been a controversial topic in England for over a decade, with culling practices in place despite wildlife charities' efforts to vaccinate badgers as an alternative. The main culprit for bovine TB in cattle is, surprisingly, other cows. Badger vaccination can help, but it's a costly and time-consuming process, involving trapping badgers overnight and injecting them with vaccines.
Cholerton's fully automated version, Autovacc, offers a more efficient solution. It can vaccinate up to 20 badgers in a colony without human intervention, detaining each badger for only a minute or two. Cholerton envisions his invention being used by scientists and farmers, providing a win-win scenario.
"This is about giving scientists the tools to prove their science is correct, and that badger vaccination works," he said. "Farmers benefit too, as they now have a way to tackle the TB problem in cattle. Everyone wins."
Robovacc has already proven its worth at London Zoo, where vets have used it to vaccinate lions and Diana monkeys. Cholerton found it worked particularly well with carnivores, who tolerate the pin-prick, unlike primates who remember the experience and avoid the machine.
Cholerton, who has spent the last decade refining his invention in his east London flat, developed a fully automatic version using three sensors to detect the muscular rear end of an animal. The machine has been tested on ring-tailed coatis, similar to badgers in their willingness to enter tunnels.
The process is ingenious: a food bait tempts the animal into a Perspex tunnel, where smart technology ensures each animal is vaccinated only once. Vaccinated animals are sprayed with nanoparticles that stick to their fur, activating sensors if they return, and a door opens to a different tunnel section for their exit.
Unvaccinated animals enter the vaccination section, where their movement is momentarily restricted, bringing their hindquarters against the sensors. In an instant, a needle is triggered, injecting the animal. Several safety mechanisms prevent the animal from breaking the needle or leaving with it still in their body. After the injection, the doors open, and the animal is free to go.
Cholerton hopes conservation scientists, charities, and even interested farmers will trial his Autovacc machine. "This has to be a collaborative effort," he said. "The more interest, the better. It would be wonderful to see it used with wild animals, offering a less invasive approach to vaccinations."
Rosie Wood, chair of the Badger Trust, commented: "Vaccinating wild species is inherently stressful, so it's encouraging to know that shy wild species can now be vaccinated without stress. The technology has many potential future applications, some of which we may not have considered yet, but could be crucial in preventing the next zoonotic pandemic."
But here's where it gets controversial: while vaccinating badgers can prove their bovine TB-free status, it doesn't seem to impact the rates of bovine TB in cattle. Wood adds, "Even Defra now concedes that badger culling has no measurable impact on bovine TB rates, and if killing them isn't working, vaccinating them won't either."
What do you think? Could this robo-vaccination machine be a game-changer for wildlife conservation and disease control? Or are there potential pitfalls we should consider? We'd love to hear your thoughts in the comments!
