Loa loa

Loa loa is a parasitic nematode belonging to the order Spirurida and the family Onchocercidae. It is crucial to clarify that this organism is not an agricultural pest and does not affect crops, plants, or plant tissues in any capacity.

From a biological standpoint, Loa loa is a filarial worm. Its lifecycle is obligate and involves a biological vector, specifically deer flies of the genus Chrysops. The transmission occurs when an infected fly bites a human host, introducing larvae into the bloodstream.

The pathology of Loa loa is strictly related to human and primate health. The adult worms migrate through the subcutaneous tissues of the host. The common name "eye worm" stems from the visible migration of the nematode across the surface of the eye, which causes significant irritation and inflammation.

As a non-plant parasite, it has no impact on agronomic productivity. There are no known interactions between Loa loa and agricultural systems, and it does not require any phytosanitary or crop protection protocols, as it is strictly a medical concern for humans residing in specific endemic regions.

Preventive measures for Loa loa focus entirely on limiting exposure to its vectors. These include wearing long-sleeved protective clothing, applying effective insect repellents to skin and clothing, and avoiding high-risk areas during the peak biting hours of the Chrysops flies.