Salmonella: the annual EU One Health zoonosis report, by EFSA and ECDC

11.12.2021

Salmonellosis was the second most commonly reported foodborne gastrointestinal infection in humans after campylobacteriosis and was an important cause of foodborne outbreaks in EUMS and non-MS countries. In 2020, the number of confirmed cases of human salmonellosis was 52,702, corresponding toan EU notification rate of 13.7 per 100,000 population. This was a decrease of 29.7% and 32.8% compared with the rate in 2019 (19.5 and 20.4 per 100,000 population) with and without the 2019 data from the United Kingdom, respectively.
The proportion of hospitalised cases was 29.9%, which was lower than in 2019, with an EU case fatality rate of 0.19%. The top five Salmonella serovars involved in human infections overall were distributed as follows: S. Enteritidis (48.7%), S. Typhimurium (12.4%), monophasic S. Typhimurium (1,4,[5],12:i:-) (11.1%), S. Infantis (2.5%) and S. Derby (1.2%).
In total, 694 foodborne outbreaks of Salmonella were reported by 22 MS in 2020, causing 3,686 illnesses, 812 hospitalisations and seven deaths. Salmonella caused 22.5% of all foodborne outbreaks in 2020. The majority (57.9%) of the reported foodborne outbreaks of Salmonella were caused by S. Enteritidis. The food vehicles most commonly involved in strong-evidence foodborne salmonellosis outbreaks were ‘eggs and egg products’.