Calicinet Data - Norovirus US Outbreak Map
Number of Confirmed Norovirus Outbreaks Submitted to CaliciNet by State
September 1, 2018 – February 28, 2019
Number of Confirmed Norovirus Outbreaks
Submitted to CaliciNet, by Genogroup
September 1, 2017 – February 28, 2019 (n=966)
Genotype Distribution of Norovirus Outbreaks
* Dual typing for norovirus is being implemented by laboratories participating in CaliciNet. Dual typing is RT-PCR amplification of a partial region of both the polymerase gene and the capsid gene (region B-C) in a single reaction for genogroup I or genogroup II noroviruses.