We don't know what the exact causes are. We believe it is related to a herpes virus. It is typically found in waters that are degraded, that don't have flushing action, that have a lot of runoff.
This website focuses on proverbs in the Swedish, Danish and Norwegian languages, and some parts including the links below have not been translated to English. They are mainly FAQs, various information and webpages for improving the collection.
This website focuses on proverbs in the Swedish, Danish and Norwegian languages, and some parts including the links below have not been translated to English. They are mainly FAQs, various information and webpages for improving the collection.