Definition
An infective agent is a pathogen capable of establishing an infection within a host organism. These agents, like viruses or bacteria, have the ability to invade and multiply. They can cause diseases that range from mild to severe. The key aspect is their capacity to actively infect and colonize a host. Think of them as microscopic invaders launching an attack on a larger system. 🦠 Unlike contaminants, these agents replicate and cause a biological response. ☣️