Non-human primates, particularly southern brown howler monkeys in Brazil and Argentina, share a close relationship with humans, making them important for studying infectious agents.
A study collected and analyzed stool samples from free-living and captive howler monkeys, revealing intestinal parasites like Giardia duodenalis and Cryptosporidium spp. for the first time in this species in the wild.
The presence of these parasites, especially one that can be transmitted to humans, highlights the impact of human activities and habitat fragmentation on wildlife health and underscores the need for eco-health measures.