Main points for 2022
This report summarises the number, demographics and clinical outcomes of confirmed cases of listeriosis from England and Wales in 2022. The main points are:
- in 2022, 167 cases of listeriosis were reported from England and Wales which is 6.4% increase compared to the previous 5 years median
- incidence rates of listeriosis were highest in people aged 80 years and over
- overall, the incidence of listeriosis was greater in men than women, with the exception of higher incidence in women for the age groups 20 to 29, 30 to 39 and 70 to 79 years
- pregnancy associated infections accounted for 14.4% of all reported cases and 28.6% of the pregnancy associated cases (where known) resulted in still birth or miscarriage
- among non-pregnancy associated cases of listeriosis, death was reported for 33 cases (23.1%), of whom 18 (55%, or 12.6% of all non-pregnancy associated cases) were known to have listeriosis recorded as a cause of death on the death certificate
- mortality amongst non-pregnancy associated cases was lower compared to the years preceding the COVID-19 pandemic (2015 to 2019), with a case fatality rate of 23.1% compared to a median of 39.2%
- incidence of listeriosis varied geographically, with the lowest incidence in the West Midlands (0.17 per 100,000 population) and the highest in London (0.43 cases per 100,000 population)
- there were 4 listeriosis outbreaks investigated in England and Wales in 2022, including a national outbreak associated with smoked fish
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