1: Duck flea or swimmer's itch

A trematode parasite that carries out its natural cycle via hosts. One is a water bird such as a duck and the other a mollusc such as a snail. When the parasite is in the form of a microscopic larva, the Cercaria, it leaves the mollusc to seek out a waterbird. Occasionally, it finds the wrong target and penetrates the bather's epidermis. Small pimples appear, accompanied by severe itching.
Don't worry, it's nothing to get worked up about!
Here are a few recommendations to help you avoid them:

  • Shower immediately after swimming,
  • Dry yourself vigorously,
  • Avoid scratching yourself.

For further information: CIPEL

Share this article

Inscritption à la newsletter de l'ASL

Restez informé.e de l’actualité de l’Association pour la sauvegarde du Léman – ASL en vous abonnant à notre newsletter:
Votre adresse de messagerie est uniquement utilisée pour vous envoyer notre lettre d'information ainsi que des informations concernant nos activités. Vous pouvez à tout moment utiliser le lien de désabonnement intégré dans chacun de nos mails.
Setting course for 2026!✨❄️ May this New Year bring each and every one of us peace, inspiration and a great collective drive for Lake Geneva.

We look forward to seeing you in January to continue our work, share useful knowledge and work together to protect Lake Geneva. Your loyalty and commitment give our mission its full meaning, and we'd like to offer you our sincerest thanks.