nematodes mode of infection and dissemination
Nematodes, also known as roundworms, can infect humans, animals, and plants. The mode of infection and dissemination of nematodes can vary depending on the species and their life cycle. Here are some common modes of infection and dissemination for nematodes: 1. Ingestion: Many nematodes infect their hosts through ingestion of contaminated food or water. The nematode eggs or larvae may be present in soil, feces, or on contaminated surfaces. When a person or animal consumes these contaminated materials, the nematodes can enter their gastrointestinal tract and cause infection. Examples of nematodes transmitted through ingestion include Ascaris lumbricoides (causes ascariasis) and Trichinella spiralis (causes trichinellosis). 2. Skin penetration: Certain nematodes have the ability to penetrate the skin of their hosts. The larvae of these nematodes typically reside in soil or water and can enter the body when they come into contact with bare skin. This mode of infection is known as cutaneou...