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flag Australian study finds Giardia parasite reproduces sexually in humans, aiding spread and drug resistance.

flag Australian-led research has revealed that the Giardia parasite, which causes millions of infections annually, reproduces both sexually and asexually, resolving a decades-long scientific debate. flag Using genetic analysis of 100 samples from humans, pets, and livestock, scientists found that while lab studies focused on an asexual strain, the more common sexual form exists in humans and likely aids genetic diversity, adaptation, and zoonotic spread. flag This discovery helps explain drug resistance in about 20% of cases and could improve prevention and treatment strategies.

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