Effects of a Just-in-Time Infection Control Boot Camp on Nursing Students' Knowledge, Self-Efficacy, and Mask Fit Competence: A Single-Group Pre- Post Study

Every year, millions of people around the world fall ill or die from infections they catch while receiving medical care. These are not random accidents; they are often the result of simple, preventable mistakes in how healthcare workers protect themselves and their patients. Nurses are on the front lines of this battle, but they face a unique challenge. For years, medical schools have taught the rules of infection control in classrooms, separating the theory from the messy reality of a hospital ward. Students learn about germs and safety protocols in lectures, but by the time they step onto a hospital floor for their first real internship, that knowledge has often faded, and they have never practiced the critical skills with their own hands. They enter high-stakes situations without the muscle memory or the confidence to act correctly when seconds count.

To bridge this dangerous gap, researchers have turned to a concept called "just-in-time" training. Imagine a pilot who studies flight manuals for years but only practices landing the plane in a simulator the day before their first solo flight. The idea is that learning is most effective when it happens right before you need to use it, when your brain is most ready to absorb and apply the information. This approach relies on the understanding that human memory is fragile; without reinforcement, skills learned in a classroom can vanish quickly. The goal is to move safety from a list of rules to a set of automatic habits, ensuring that when a nurse puts on a mask or washes their hands, they do it perfectly without hesitation.

A team of researchers at Peking Union Medical College Hospital in Beijing decided to test this idea with a group of fourth-year nursing students. They gathered 144 students just one week before their clinical internships were set to begin. These students were about to enter the hospital environment for the first time, carrying the theoretical knowledge they had accumulated over years of study but lacking the practical, verified skills to handle real-world risks. The researchers designed a short, intensive training session called an Infection Control Boot Camp. It lasted three and a half hours, a brief window of time intended to pack a powerful punch right before the students faced the real thing.

The training was not a lecture. It was a hands-on experience divided into three parts. First, the students engaged with real-life stories of hospital outbreaks to understand why the rules existed. Then, they moved to stations where they practiced the physical skills of infection control. They learned how to put on and take off protective gear, how to handle sharp objects safely, and, most critically, how to fit a protective mask to their own faces. The mask fitting was not a guess; it was a rigorous test. Using a special bitter-tasting liquid, instructors checked if air was leaking around the edges of the mask. If a student failed, they received immediate coaching and tried again until they passed. Finally, the students faced a high-tech simulation of a patient with a dangerous infection, where they had to apply everything they had just learned in a realistic scenario.

The results of this experiment were clear and immediate. Before the training, the students' knowledge scores were modest, averaging around 62 out of 100. Immediately after the three-and-a-half-hour boot camp, their scores jumped to nearly 68. Their confidence in their own abilities also rose significantly. But the most striking result was in the physical skills. When the students first tried to fit their masks, about 82 percent passed on the first try. After the instructors helped the others correct their mistakes, nearly 97 percent of the entire group could fit a mask perfectly. This was not just a feeling of confidence; it was an objective, verified skill that every single student now possessed.

However, the story did not end there. The researchers wanted to know if these gains would last. They waited three months and checked in with the students again, after they had spent time working in the hospital. The results showed that the sharp edge of the training had dulled. The students' knowledge and confidence had dropped back down, though they were still higher than they had been before the training started. They had retained about two-thirds of their new knowledge and about half of their new confidence. The single, intense session had been effective, but it was not a permanent cure for forgetting.

The most surprising discovery came when the researchers looked at what actually kept the students behaving safely in the hospital. They expected that the students who had learned the most or felt the most confident would be the ones following the rules. They were wrong. The data showed that the students' own knowledge and confidence had very little to do with whether they followed safety protocols three months later. Instead, the single strongest factor was the environment around them. Students who felt supported by their hospital ward, who saw their supervisors modeling safe behavior, and who had easy access to protective equipment were the ones who kept up the good work. If the hospital environment was chaotic or unsupportive, even the best-trained students struggled to maintain their safety habits.

This finding suggests that teaching a nurse how to be safe is only half the battle. The other half is ensuring the hospital itself is set up to let them be safe. A short, well-timed training session can give students the skills and the confidence to start, but without a supportive workplace that reinforces those habits, the training fades. The researchers concluded that to truly protect patients and healthcare workers, schools must provide this kind of intensive, just-in-time preparation, but hospitals must also provide the culture and resources that allow those skills to survive the transition from the classroom to the bedside. The training works, but it needs the right soil to grow.