Sweden – Increase in cases of illness with Campylobacter infection

Posted on July 7, 2023 by | Leave a comment

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In recent weeks, there has been an increase in the number of people who have contracted campylobacter infection. The rise in the number of cases is preceded by an increase in campylobacter in broiler flocks. Good hygiene when handling raw chicken reduces the risk of becoming infected.

There has been an increase in the number of people who have been infected by the intestinal bacteria campylobacter in recent weeks. During week 26, the number of reported cases increased further compared to previous weeks and the increase looks set to continue.

Figure: The number of reported cases of campylobacter per week infected in Sweden or with an unknown country of infection (230706). Week 27 is not yet complete.

The number of sick people increased from week 21 to 60 cases per week from 30 cases. In week 26, the cases increased further, a similar increase is seen in 2020-2022.

From mid-June, an increase in the occurrence of campylobacter in Swedish broiler flocks has also been observed. Previous studies have shown a connection between campylobacter infection and the consumption of fresh chicken, where around a third of those who have contracted the disease have been linked to fresh chicken. Campylobacter infection in humans is more common in summer as is the presence of campylobacter in broiler flocks.

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