Field Sampling and Laboratory Studies of airborne Norovirus

Malin Alsved, Jakob Löndahl, A. Widell, P. Medstrand, C-J Fraenkel, K. Lovén, C. Isaxon, T. Svensson, T. Holmdahl, B. Böttiger, M. Bohgard

Human Norovirus, which causes winter vomiting disease, infects millions of people every year and is estimated to cause 200 000 yearly deaths worldwide [1]. Norovirus is known to spread via physical contact, food and through the air. Viruses can become airborne through for instance flushing in a toilet with faeces from an infected patient, or by vomiting. Viral particles can then stay in the air for long periods and likely infect other humans.
An outbreak of disease at a hospital ward causes major stress on the health care: staff is reduced because of infected personnel and workload is increased because of ill patients. The knowledge of airborne transmission of Norovirus is limited and often overseen in disease prevention. The aim of this study is to investigate parameters that affect transmission and viability of norovirus in the air.

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