University of Oregon researchers hope to make wood — often overlooked in health care facilities — more commonplace in those settings. Exposed wood, they’ve found, can resist microbial growth after a brief wetting. During the study, wood samples tested lower for levels of bacterial abundance than an empty plastic enclosure used as a control. “People generally think of wood as unhygienic in a medical setting,” said assistant professor Mark Fretz, co-director of the UO’s Institute for Health in the Built Environment and principal investigator for the study. “But wood actually transfers microbes at a lower rate than other less porous materials such as stainless steel.” Numerous studies support those properties of wood. A UO-led research team including scientists from the Salk Institute for Biological Studies in San Diego and Portland State University wanted to explore what happens when wood gets wet and then dries.