👉 Immediately infection, also known as primary infection, refers to the initial stage when a pathogen first enters and begins to multiply within a host's body. This can occur through various routes such as inhalation, ingestion, skin contact, or vector-borne transmission. Once inside, the pathogen—be it a virus, bacterium, fungus, or parasite—attaches to host cells, evades the immune system, and starts replicating. This rapid multiplication can lead to symptoms that vary depending on the pathogen but often include inflammation, tissue damage, and the body's immune response. Immediate infection sets the stage for potential complications if not promptly addressed by the immune system or medical intervention.
