Here's why:
* Roundworms are highly contagious and their eggs can survive in the environment for long periods.
* Fecal-oral transmission is the primary route of infection. This happens when humans ingest eggs from contaminated soil, food, or water.
* Animals like pigs and dogs can carry roundworm eggs in their feces, and their feces can contaminate the environment.
While other parasites can be transmitted in a similar way, roundworm is particularly common due to its widespread distribution, high infectivity, and potential for severe health consequences.
It's important to note that other parasites, such as Giardia, Cryptosporidium, and Toxocara, can also be transmitted from animals to humans through contaminated feces.
