How can humans contract Strongyloides stercoralis?

Humans can contract Strongyloides stercoralis primarily through skin penetration by larvae. The life cycle of this parasitic roundworm includes an infectious stage where filariform larvae can penetrate the skin, often through contact with contaminated soil, particularly in warm and moist environments. Once the larvae penetrate the skin, they can enter the bloodstream and migrate to the lungs, where they are coughed up and swallowed, eventually reaching the intestines where they mature.

This mode of transmission highlights the importance of avoiding bare skin contact with potentially contaminated soil, especially for individuals in endemic areas. Understanding this transmission route is crucial for effective prevention measures against Strongyloides stercoralis infections.