Infectious Diseases 2022

Infectious Diseases 2022

China: Salmonella outbreak linked to eggs

Front. Microbiol., 22 November 2021 16 January, 2022

A Salmonella outbreak linked to egg fried rice in China affected more than 220 people this past year. The outbreak occurred in Beijing in March 2021 with 225 of 324 diners who ate at a canteen showing gastrointestinal symptoms. Epidemiological investigations and lab tests confirmed the outbreak was related to undercooked egg fried rice. Salmonella enteritidis was recovered from eggs. So the contaminated egg fried rice may be related to raw eggs carrying S. enteritidis.
The epidemiological investigation found that when the egg fried rice was processed for dinner, the shell of the egg was not cleaned before used, and the cooking time of the egg fried rice was too short to guarantee food safety (1 min 50 s). Besides, the processed egg fried rice was placed in a basin, which contained the residual raw materials without cleaning.