The act of keeping a person or thing safe from harm.
Something which protects.
The phenomenon wherein a particular strain or isolate exhibits defensive properties against invasion and infection by another strain or isolate can be referred to as “cross-protection.” This occurrence involves the activation of the host’s immune response and its ability to recognize and combat the invading agent. The protective effect of the initial strain or isolate can either be partial or complete, and the extent of the defensive response can vary based on the host’s immune system and the characteristics of the invading agent. Overall, cross-protection can play a significant role in disease prevention and control.