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Table 1 Summary of key epidemiological features of ST313 sampled by PHE. Full metadata for all isolates in this study is available in Additional file 2: Table S2

From: Public health surveillance in the UK revolutionises our understanding of the invasive Salmonella Typhimurium epidemic in Africa

A. Association between isolation source and travel to sSA. Total = 48a
  Extra-intestinal infection Gastro-intestinal infection
Reported travel to sSA 6 2
No reported travel to sSA 2 38
  OR = 57.0 (95% CI = 6.7–484.8), p value = 0.0002
B. Association between lineage 2 infection and travel to sSA. Total = 51b
  Lineage 2 Non-lineage 2
Reported travel to sSA 7 1
No reported travel to sSA 2 41
  OR = 143.5 (95% CI = 11.4–1802.9), p value = 0.0001
C. Association between lineage 2 infection and extra-intestinal infection. Total = 72c
  Lineage 2 Non-lineage 2
Extra-intestinal infection 10 3
Gastro-intestinal infection 1 57
  OR = 190.0 (95% CI = 17.9–2014.0), p value < 0.0001
  1. a51 individual patient isolates with travel information, but three with source unknown
  2. b51 individual patient isolates with travel information
  3. c75 individual human patient isolates in total, but three with source unknown. One isolate not included in phylogeny due to poor quality sequence, so lineage unknown