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Table 3 Additional characteristics of included studies

From: Incubation period of typhoidal salmonellosis: a systematic review and meta-analysis of outbreaks and experimental studies occurring over the last century

Study number Mean incubation period No. affected (attack rate) No hospitalised (deaths) Age Distribution Source Setting of exposure Food vehicle Ingested dose Vaccine history Case definitions as described by the studies
Study 1 16.5 12 (Low) 0 (0) children Surface water Recreational park NR Not reported Not reported All clinical symptoms with or without microbiological confirmation
Study 2 20.9 31 (31.63) 16 (0) Mixed Food handler catered meal Sandwiches Not reported 17 cases reported previous vaccination at anytime All clinical symptoms
Study 3 14 24 (40) 7 (0) Mixed Food handler Picnic Potato Salad Not reported None All clinical symptoms with or without microbiological confirmation
Study 4 17.4 7 (NR) 7 (0) Mixed Food handler Restaurant NR Not reported Not reported All clinical symptoms
Study 5 21.4 24 (25.53) 24 (0) Adults Food handler Outdoor activity Cucumber salad Not reported All cases Specific to fever with or without microbiological confirmation
Study 6 11.4 235 (34.97) NR Adults Experimental Experimental Milk 105 None Specific to fever
Study 7 20.6 69 (65.09) 69 (0) Mixed Food handler catered meal NR Not reported Not reported All clinical symptoms with or without microbiological confirmation
Study 8 17.7 26 (7.42) 26 (0) NR Unknown catered meal Pork meat Not reported Not reported Specific to fever with or without microbiological confirmation
Study 9 14.7 35 (14) 35 (6) Mixed Food handler catered meal Vegetable Not reported Not reported All clinical symptoms with or without microbiological confirmation
Study 10 10.5 84 (56) 77 (3) Mixed Food handler catered meal Spanish spaghetti Not reported Not reported All clinical symptoms with or without microbiological confirmation
Study 11 9.7 & 7.6 24 (60) 0 (0) Adults Experimental Experimental Sodium bicarbonate 103 & 104 None Specific to fever with or without microbiological confirmation
Study 12 9.1 41 (73.21) NR Mixed Unknown community Corned beef Not reported Not reported All clinical symptoms
Study 13 7 23 (79.31) 23 (3) NR Food handler Picnic Ice cream Not reported Not reported Specific to fever and excluding diarrhea and vomiting
  1. NR Not reported