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Swab Sampling Method for the Detection of Human Norovirus on Surfaces
Published on: February 6, 2017
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Norovirus Outbreak Surveillance, China, 2016-2018
Emerging Infectious Diseases
|February 25, 2020
Summary
CaliciNet China monitored norovirus outbreaks from 2016-2018. The predominant genotype was GII.2[P16], with most outbreaks occurring in schools and during winter months.
Area of Science:
- Public Health
- Epidemiology
- Virology
Background:
- Norovirus is a leading cause of gastroenteritis outbreaks globally.
- Effective surveillance is crucial for understanding norovirus epidemiology and informing control strategies.
Purpose of the Study:
- To describe the epidemiology and genotype distribution of norovirus outbreaks in China.
- To establish baseline data for ongoing surveillance by CaliciNet China.
Main Methods:
- CaliciNet China collected and genotyped norovirus outbreak samples from October 2016 to September 2018.
- Epidemiological data including transmission routes, locations, and seasonality were analyzed.
Main Results:
- A total of 556 norovirus outbreaks were reported, with 470 samples genotyped.
- Most outbreaks (95.1%) were person-to-person, predominantly in childcare centers/schools (78.2%), and occurred November-March (63.5%).
- The GII.2[P16] genotype accounted for 81.2% of all genotyped norovirus outbreaks.
Conclusions:
- GII.2[P16] is the predominant norovirus genotype in China.
- Childcare centers and schools are key settings for norovirus outbreaks.
- CaliciNet China surveillance provides essential data for developing interventions, including vaccines.
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