COLLEGE PARK, Md. — Campus life typically challenges students with new opportunities for learning, discovery — and intimacy with germs.
Lots of germs.That makes dormitories and their residents an ideal natural experiment to trace the germs’ paths. “You pack a bunch of college kids into a very small environment … we’re not known as being the cleanliest of people,” says sophomore Parker Kleb at the University of Maryland in College Park. Kleb is a research assistant for an ongoing study tracking the spread of respiratory viruses through a student population. The study’s goal is to better understand how these viruses move around, in order to help keep illness at bay — all the more pressing, as the current flu season is on track to be among the worst recorded in the United States.
Called “C.A.T.C.H. the Virus,” which stands for Characterizing and Tracking College Health, the study traces the trajectory of viral infections using blood samples, nasal swabs and breath samples from ailing freshmen and their closest contacts. (Tagline: It’s snot your average research study.)
Donald Milton, an environmental and occupational health physician-scientist, heads the project. On a recent day, he described the study to a classroom of freshmen he hopes to recruit. He ticked off questions this research seeks to answer: What is it that makes people susceptible to getting sick?
What makes them contagious? And how do they transmit a virus to others? “Maybe your house, your room has something to do with whether you’re at risk of getting infected,” Milton said.He had a receptive audience: members of the College Park Scholars’ Global Public Health program. Infection control is right up their alley. “How sick do we have to be?” one student asked. It’s the culprit that matters, she’s told. The study covers acute respiratory infections due influenza viruses, adenoviruses, coronaviruses or respiratory syncytial virus, known as RSV.
Of most interest, however, is influenza. “Flu is important to everybody,” says Milton. Influenza is thought to spread among humans three ways — touch; coughing and sneezing, which launches droplets containing virus from the lungs onto surfaces; and aerosols, smaller droplets suspended in the air…
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