IMMUNOLOGY

Detailed explanation-1: -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. Organisms can spread-or be transmitted-by several routes.

Detailed explanation-2: -Human microbiome: 39 trillion microbes and bacteria that call us home | BBC Science Focus Magazine.

Detailed explanation-3: -Our immune system sends out white blood cells, antibodies, and other chemicals to rid the body of the invading germs. The germs, the toxins, and the immune system processes all can lead to the annoying symptoms of a cold or flu-like infections, such as sniffles, sneezing, coughing, and diarrhea.

Detailed explanation-4: -Microbes inhabit just about every part of the human body, living on the skin, in the gut, and up the nose. Sometimes they cause sickness, but most of the time, microorganisms live in harmony with their human hosts, providing vital functions essential for human survival.

Detailed explanation-5: -By touching an object contaminated with the stool of an infected person, and then eating the germs. This often happens by touching the mouth with the contaminated hand. This can occur at daycare centers or at home in places where diapered babies play.

Detailed explanation-6: -Germs are found in air and water. 2. Germs are found in our hands, nails and in the ridges.