An Outbreak of Foodborne infection caused by Shigella sonnei in West Bengal, India.

An Outbreak of Foodborne infection caused by Shigella sonnei in West Bengal, India. Jpn J Infect Dis. 2018 Feb 28;: Authors: Debnath F, Mukhopadhyay AK, Choudhury G, Saha RN, Dutta S Abstract A foodborne acute gastroenteritis outbreak due to Shigella sonnei infection occurred in a household after having food in a housewarming party of Pakapol Village, South 24 Parganas District of West Bengal, an Indian state in November 2016. Here we report, the epidemiological and microbiological findings of this outbreak. Thirty-four people attended the party on 23rd November 2016 and had lunch together. Median incubation period for development of acute gastroenteritis (AGE) cases from time of food consumption was 18.5 hours {interquartile range (IQR), 16.5-22 hours}. Overall attack rate was 73% (25/34), of which 76% (19/25) required hospitalization. All age groups were affected with 100% recovery rate. One served food item was significantly associated with the illness: tomato salad {risk ratio (RR) = 4.14; 95% confidence interval (CI) = 1.21-14.13}. Twelve stool specimens were tested for pathogen and eight stool specimens (67%; 8/12) were tested positive for Shigella sonnei. All the Shigella sonnei strains were resistant to nalidixic acid, norfloxacin, ciprofloxacin, ofloxacin and erythromycin followed by tetracycline, doxycycline, streptomycin and trimethoprim/sulfamethoxazole. PFGE analysis showed that the recent outbreak Shigella sonnei strain...
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research