Community-Tailored One Health Educational Intervention to Enhance Knowledge and Practices for Zoonotic Disease Prevention in Rural Thailand: a Protocol for a Prospective Cluster Randomised Controlled Trial in Chanthaburi, Thailand (Saan Suk trial)

Imagine the world as a giant, bustling neighborhood where humans, animals, and the environment all live in the same crowded house. Sometimes, a tiny, invisible germ decides to jump from a wild animal to a person, or from a farm animal to a human. This jump is called "spillover," and it's like a game of hot potato where the potato is a virus that can make us very sick. Scientists call this the "One Health" idea: it's the understanding that our health is tied up in a big knot with the health of animals and the health of the planet. If the house is messy or we get too close to the wrong neighbors, the germs jump. To stop this, we don't just need doctors; we need everyone in the neighborhood to know the rules of the game. That's where "Health Belief" comes in—it's the simple idea that people will only change their habits if they truly believe a danger is real, that they can do something about it, and that the action is worth the effort.

Now, picture a team of researchers in Thailand who decided to test a new way to teach these rules. They didn't just write a boring pamphlet and hope people read it. Instead, they built a program called "Saan Suk," which means "Weaving Health." They worked directly with the villagers to design it, making sure it felt like a helpful chat rather than a lecture. The paper you are about to read is not a report on what happened after the game was played; it is the blueprint or the recipe for a giant experiment they are planning to run in the summer of 2026. They are setting up a fair test to see if this special "Weaving Health" program actually helps people learn how to stop germs from jumping. They haven't found the answer yet because the experiment hasn't started, but they have a very clear plan for how they will find out.

The Big Plan: A Village-Level Game Show

The researchers are setting up a massive, real-life experiment in the rural villages of Chanthaburi province in Thailand. Think of this like a giant science fair, but instead of baking cookies, the contestants are entire villages. They have picked 24 villages to participate. To make sure the test is fair, they will use a method called a "cluster-randomised controlled trial." Imagine putting all 24 village names into a hat. They will pull them out one by one and split them into two teams: the Saan Suk Team and the Current Practice Team.

The Current Practice Team is the control group. These villages will continue doing exactly what they always do. Their local health helpers, known as Village Health Volunteers (VHVs), will keep visiting homes and giving standard health advice, just like they have for decades. This is the "baseline" or the "before" picture.

The Saan Suk Team is the intervention group. In these villages, the VHVs will get a special, four-week training course. Once a week for four weeks, they will visit 42 households in their village (that's 1,008 people in total across all villages). During these visits, the VHVs won't just talk; they will show. They will use videos, leaflets, and even practical items like soap, biodegradable gloves, and special cutting boards to teach people how to handle food and animals safely. It's like giving the villagers a new toolkit to keep their "neighborhood house" germ-free.

The Rules of the Game

To make sure the test is scientific, the researchers have set some strict rules. First, the villages must be far apart—at least 2 kilometers away from each other. This is to stop the "Saan Suk" secrets from leaking from one village to another, which would ruin the fairness of the test. It's like keeping two teams in separate rooms so they can't peek at each other's answers.

The people running the test are trying to be as fair as possible. Because the villagers and the health volunteers are the ones delivering and receiving the special program, they will know which team they are on; it is impossible to hide the intervention from them. However, the people asking the questions at the end will be "blinded." This means the interviewers won't know if the person they are talking to is from the "Saan Suk" village or the "Current Practice" village. This stops them from accidentally giving hints or being too nice to one group.

What Are They Looking For?

The main thing the researchers want to measure is knowledge. They have created a test with 23 questions about how germs jump from animals to humans, what animals carry them, and how to stop it. They will score this from 0 to 100. Their goal is to see if the "Saan Suk" villages score at least 6 points higher than the control villages. They believe a jump of 6 points is a meaningful change, like going from a "C" grade to a "B" in a class.

They also have a list of secondary things they want to check, like:

• Attitudes: Do people feel more worried about the germs? Do they feel more confident they can stop them?
• Behaviors: Are people actually washing their hands more or cooking meat differently?
• Contacts: Are people touching fewer wild animals or risky farm animals?

The Timeline and the "What Ifs"

The experiment is scheduled to kick off on July 27, 2026, and wrap up by October 2026.

• July–August: They will pick the villages, get permission from the village leaders, and sign up the health volunteers.
• August–September: The "Saan Suk" volunteers will do their four weeks of special visits.
• September: The big test happens. The interviewers will go to all the houses and ask the questions.
• November: They will lock the data and start crunching the numbers.

The researchers are very careful about safety. Since this is just an educational program (no medicine, no needles), the risks are very low. However, they have a plan to stop the program immediately if something goes wrong, like if a volunteer gets aggressive or if a family feels unsafe. They also know that sometimes people move away or forget to answer, so they have a plan to handle missing data without cheating the results.

The Bottom Line

This paper is a promise of a future discovery. The authors are saying, "We have built a clever, community-friendly way to teach people about zoonotic diseases. We have a solid plan to test if it works. If it does, we hope to teach this method to all the Village Health Volunteers in Thailand, creating a massive shield against future outbreaks."

Right now, the paper doesn't tell us if the Saan Suk program will work. It only tells us how they will find out. They are betting that by weaving together local wisdom, modern science, and a little bit of fun, they can help people in rural Thailand weave a stronger safety net against the invisible germs that jump between animals and humans. If the math works out and the scores go up, it could be a huge win for keeping the whole world safer.