Around 800 Danes were diagnosed last year as being infected with a small single-celled intestinal parasite, Cryptosporidium, which can cause severe diarrhoea, abdominal pain, exhaustion and possibly nausea.
The many cases are a significant increase compared to previous years. The reason for the many new findings is probably primarily due to the introduction of more systematic analyzes of faecal samples at the clinical microbiology departments at the hospitals in Slagelse, Odense, Herlev and Aalborg.
“Cryptosporidium thus appears to be much more common in the population than we previously assumed. And this means that we have a diverse population of parasites whose sources and routes of infection are currently poorly understood. It is not a notifiable disease, but we follow the development through the samples that we receive,” says Rune Stensvold, senior researcher, Dept. Bacteria, parasites and fungi, Statens Serum Institut.
If you get sick from Crytosporidiosis it can last for a few weeks, but usually goes away on its own eventually, and is generally harmless.
In the past, sources of infection have been found among calves, but humans can also be infected via rodents. There are no vaccines against the parasite.
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