How can we best prevent disease, considering the dose of the microbe and body resistance?

Question

Quizplus · Accepted Answer

To best prevent disease, we want to decrease the dose of the microbe (e.g. through vaccination or proper hygiene) and increase body resistance (e.g. through a healthy lifestyle, adequate sleep and nutrition, and staying physically active). Increasing the dose of the microbe or decreasing body resistance would make it more likely for disease to occur. Increasing both would not necessarily be effective and could actually be harmful.

How Can We Best Prevent Disease, Considering the Dose of the Microbe