Fomite:
Rasmussen said epidemiologists can have a difficult time finding real-word evidence of a virus’s transmission via contaminated objects or surfaces, which are called fomites. In the case of the coronavirus, this is partly because transmission often occurs in the context of large, superspreader events, leaving researchers struggling to determine who talked to whom, and who touched what surface. “It’s not at all uncommon to not have strong epidemiological evidence for fomite transmission,” she said, “but that doesn’t mean that fomite transmission doesn’t happen.”
In fact, Rasmussen added, because we know that other respiratory viruses that are transmitted by inhalation, such as the flu and rhinovirus, are also transmitted by fomites, it stands to reason that coronavirus is likely transmitted by fomites as well. “It just may be that that’s not necessarily the dominant mode of transmission,” she said. And although it may be important for researchers to determine how long the virus remains infectious in various environments, when it comes to daily life, “I don’t think that it’s necessarily wise to be wiping groceries down.” [“Stop wiping down groceries and focus on bigger risks, say experts on coronavirus transmission,” Elizabeth Chang, WaPo]
