Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Epidemiology of Norwalk virus outbreaks
| Vega et al. (2011) | Lopman et al. (2003) | Werber et al. (2009) | |
|---|---|---|---|
| Study period | March 2009–January 2011 | 1995–2000 | 24 August–7 September 2008 |
| Place of study | 20 state and local health laboratories, United States | 10 surveillance systems in Europe network | Podgorica, Europe |
| Incidence of Norwalk gastroenteritis (%) | 72 | >85 | 60 |
| Major serotype isolated | G2 | Not Known | G2 & G1 |
| New variants isolated | G2.4 New Orleans | Not Known | None isolated |
