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How safe is the sushi we eat? Here's what science says

2023-10-04 19:16:15Lifestyle SHKRUAR NGA REDAKSIA VOX
How safe is the sushi we eat? Here's what science says
How safe is the sushi we eat?

Eating sushi, if the fish is of excellent quality, is not in itself a dangerous activity. But like all foods eaten alive, this delicious food can harbor unwanted bacteria and be dangerous to the health of those who consume it if it is not cooked properly.

According to a study published in Frontiers in Microbiology , sushi may contain bacteria that are responsible for promoting antibiotic resistance.

The most feared bacteria when it comes to sushi is Listeria monocytogenes, responsible for listeriosis, an infection contracted through contaminated food.

Hyejeong Lee, a biotechnologist and food scientist at the Norwegian University of Science and Technology, would like to investigate sushi for the presence of a lesser-known genus of bacteria, Aeromonas, a pathogen widespread in aquatic environments that can infect those who consume it. alive.

The scientist tracked 22 different species in 8 types of raw fish sold for direct consumption in Norway, the country that "invented" salmon sushi.

"The results show that the mild processing these fish products receive does not guarantee inhibition of Aeromonas bacteria," says Lee.

According to the scientist, "most of these variants of Aeromonas are probably pathogenic" and are associated with gastrointestinal problems, even if for a healthy individual the risk of becoming seriously ill from this bacterium is very low. The most worrying aspect concerns the phenomenon of antibiotic resistance, which Aeromonas appears to alleviate.

In fact, these bacteria regularly exchange genetic material with other microorganisms when they are in the sea. It means that they can acquire genes that facilitate resistance to antibiotics and pass them on to other bacteria, since they, through raw fish, manage to spread from the sea to our organism, to the environment we frequent.


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