26 Sep 2018 --- Nasal microbiota may influence the viral load, host innate immune response and clinical symptoms during rhinovirus infection, according to a collaborative clinical study between DuPont Nutrition & Health, the University of Virginia and 4Pharma Ltd. The researchers of these organizations worked in collaboration in an experimental rhinovirus challenge to understand the role of nasal microbiota clusters and their association with inflammatory response, viral load and symptom severity.