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The sticky biofilms that form on microplastics can harbor disease-causing pathogens and help them spread. Tunatura/iStock via Getty Images Plus

Disease-causing parasites can hitch a ride on plastics and potentially spread through the sea, new research suggests

Normally land-bound pathogens that cause deadly diseases for both humans and animals can cling to microplastics and end up in your seafood.
Giardia is an example of a parasite you don’t want to catch. Symptoms can include diarrhoea, abdominal cramps, fatigue, weakness and weight loss. From shutterstock.com

What are parasites and how do they make us sick?

There are three classes of parasites that can cause disease in humans. Here’s what you need to know.

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