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Burkholderia pseudomallei and pathogenic Leptospira in contaminated drinking water can cause melioidosis and leptospirosis, respectively. Here, we evaluated their survival in beverages. We mixed six isolates (three isolates per organism) in four beverages (Coca-Cola®, Red Bull®, Singha® beer, and Gatorade®) and distilled water as the control at two final concentrations (1 × 107 colony-forming units [CFU]/mL and 1 × 103 CFU/mL). The solution was kept at two temperatures (37°C and 4°C). At 4°C and at the high concentration, pathogenic Leptospira survived in Coca-Cola® up to 3 minutes and in Singha, Red Bull®, and Gatorade up to 15 minutes, whereas B. pseudomallei survived in these beverages up to 8 hours, and 14, 14, and 28 days, respectively. The survival time of both organisms was shorter at 37°C (P = 0.01) and at the lower concentration (P = 0.001). In conclusion, Leptospira can survive in some beverages for up to 15 minutes, whereas B. pseudomallei can survive in some beverages for up to 4 weeks.

Original publication

DOI

10.4269/ajtmh.19-0948

Type

Journal article

Journal

The American journal of tropical medicine and hygiene

Publication Date

07/2020

Volume

103

Pages

249 - 252

Addresses

Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.

Keywords

Burkholderia pseudomallei, Leptospira, Leptospira interrogans, Isotonic Solutions, Food Contamination, Time Factors, Sports, Beverages, Beer, Carbonated Beverages, Energy Drinks