Novel Salmonella enterica Serovar Typhimurium Genotype Levels as Herald of Seasonal Salmonellosis Epidemics
Cristina Sotomayor, Qinning Wang, Alicia Arnott, Peter Howard, Kirsty Hope, Ruiting Lan, and Vitali Sintchenko
Author affiliations: Universidad Austral de Chile, Valdivia, Chile (C. Sotomayor); Centre for Infectious Diseases and Microbiology Public Health, Westmead, New South Wales, Australia (C. Sotomayor, Q. Wang, A. Arnott, P. Howard, V. Sintchenko); University of Sydney, Sydney, New South Wales, Australia (C. Sotomayor, A. Arnott, V. Sintchenko); New South Wales Ministry of Health, Sydney (K. Hope); University of New South Wales, Sydney (R. Lan)
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Figure 1
Figure 1. Trends of Salmonella enterica serovar Typhimurium notifications and multilocus variable-number tandem-repeat analysis (MLVA) patterns, New South Wales, Australia, 2009–2016. A) Quarterly counts of total cases and cases clustered by MLVA. B) Mean sum of Salmonella Typhimurium notifications for summer and autumn quarters for high and low seasons observed (p = 0.01). C) Differences in mean yearly rates of salmonellosis cases reported to the New South Wales Health Department between years corresponding to high and low seasons (p = 0.02). Data source: National Notifiable Diseases Surveillance System (http://www9.health.gov.au/cda/source/).
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