A method for preventing obesity related to infection by an adipogenic adenovirus includes obtaining a sample from a person, assaying the sample to determine whether the person has been previously infected with an adipogenic adenovirus, and if the person has not been previously infected, providing the person with at least one sensor positioned to detect when a person's hand approaches a predetermined distance from the person's face. By warning the person of undesired hand-to-face contacts, the person is able to reduce the incidence of obesity related infections. Other embodiments are directed to a kit for preventing obesity caused by infection with an adipogenic adenovirus, such kit including a container for assaying an agent indicating the presence of antibodies to Ad-36, and a sensor positioned on an item selected from the group consisting of one of a hat, a writing instrument, eye glasses, a belt, sunglasses, a bra, a shirt, and a tie.