Entering the Human Host
Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or urogenital openings, or through wounds or bites that breach the skin barrier.
What are the 4 most common ways that germs enter the body?
Most germs are spread through the air in sneezes, coughs, or even breaths. Germs can also spread in sweat, saliva (spit), and blood. Some pass from person to person by touching something that is contaminated, like shaking hands with someone who has a cold and then touching your own nose.
What are the 3 main ways infection can get into the body?
Pathogens can enter the body by coming into contact with broken skin, being breathed in or eaten, coming into contact with the eyes, nose and mouth or, for example when needles or catheters are inserted.
