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. 2023 Jan 5;13:1099184. doi: 10.3389/fmicb.2022.1099184

Table 5.

Zoonotic evidences of toxinotypes C, D, C/D, and D/C mosaics.

Country Year Cases* (deaths) Biological samples analyzed*: Results Suspected or confirmed source** Food samples analyzed: Results Human botulism Outbreak
USA, 1950 4 (1) Stomach fluid: Presence of BoNT/C and C. botulinum type C None** Clinical suspicion type C
France, 1955 2 (0) None* Pâté” (Homemade): Absence of BoNT Presence of C. botulinum type C Clinical suspicion type C
Chad, 1958 2 (0) None* Ham (Homemade): Presence of BoNT/D and C. botulinum type D Clinical suspicion type D
Rhodesia, 1960 4 (0) None* Pâté” (Homemade): Absence of BoNT Presence of C. botulinum type B or C Clinical suspicion type B or C
France, 1972 4 (1) Sera: Presence of BoNT/C Smoked chicken suspected (not analyzed) Foodborne botulism type C
Japan, 1990 1 (0) Stool: Presence of BoNT/C Environmental contamination suspected (no samples analyzed) Infant Botulism type C
France, 2006 1 (0) Serum: absence of BoNT
Stool: Absence of BoNT and C. botulinum
Consumption of sick chicken before onset of symptoms Clinical suspicion type C or D

BoNT, Botulinum neurotoxin. In bold in the table, confirmed case of botulism. *Case: Having shown at least one typical sign of botulism: diplopia, mydriasis, swallowing difficulties, dry mouth, slurred speech, paralysis, constipation (vomiting and diarrhea are not specific to botulism). **Suspected or confirmed sources.