- Bir kişiden, aynı guruptaki diğerlerine (mesela aynı yaş gurubundaki insanlar) bulaşmasına denir. (tr)
Horizontal transmission is the transmission of organisms between biotic and/or abiotic members of an ecosystem that are not in a parent-progeny relationship. This concept has been generalized to include transmissions of infectious agents, symbionts, and cultural traits between humans.
- disease transmission (en)