👉 The term "doors" in the context of infection refers to the entry points through which pathogens, such as bacteria, viruses, or fungi, can invade and colonize the body. These doors are primarily the respiratory tract (nose, mouth, throat), gastrointestinal tract (mouth, stomach, intestines), and skin. When these entry points are compromised—due to factors like cuts, abrasions, or weakened immune systems—the pathogens can more easily penetrate the body's defenses. Once inside, they can multiply and cause infection, leading to a range of symptoms and potential health issues. Understanding and protecting these doors, through practices like hand hygiene, proper nutrition, and vaccination, is crucial in preventing infections and maintaining overall health.
