What do we know about Vibrio infections?

Let’s say it in English
Carmen Lobitz
Abbildung mit zahlreichen rot gefärbten, kommaförmigen Bakterien der Gattung Vibrio mit fadenförmigen Geißeln vor dunklem Hintergrund
© Giovanni Cancemi/stock.adobe.com
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What are vibrios? Vibrios are gram-negative, rod-shaped bacteria with polar flagella. They are moderately to strongly halophilic. The best-known representative of the group is probably Vibrio cholerae, the causative agent of epidemic cholera and source of the cholera toxin. The “non-cholera vibrios” are also found as part of the normal bacterial flora in the North Sea and Baltic Sea, and occasionally in slightly saline inland waters.

Some representatives are also pathogenic to humans, such as Vibrio parahaemolyticus, V. vulnificus, V. fluvialis, V. furnissii, V. alginolyticus, V. mimicus and V. metschnikovii. They are not indicative of faecal contamination of the water.

Where can you become infected with non-cholera vibrios?

Infections with non-cholera vibrios are rare. In addition to cases on German coasts and (rarely) in inland waters in Germany, further cases have also been observed in European countries bordering the North Sea and Baltic Sea, such as Sweden, Finland, Denmark, Norway, the Netherlands and the Channel Islands. With a salinity of over 3 %, the North Sea is usually too salty. However, lower salinity levels (1.5 to 2.5 %) are measured in estuaries. Compared to other seas, the Baltic Sea has a lower…

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