In addition to exposure to germs or pathogens, what other factors influence risk of getting.?

In addition to exposure to germs or pathogens, what other factors influence risk of getting an infectious disease? What defenses does your body have that can prevent you from getting sick, even when you have been exposed to a pathogen?

Answers:
To fend off the pathogen, your body produces white blood cells. These cells target the disease and work to kill it off.
Read your science book--if the teacher didn't want you to learn the stuff that's in it, the school wouldn't have given you the book.
actually coming down with a disease, after exposure to the etiological agent (germ, virus, parastite, etc.) will depend on many things.amount of exposure (how many of the bugs did you get), the state of your immune system at the time of exposure (Immune system can be degraded by stress, poor diet, etc.), and the availability of receptor sites for the agent.were you immune by vaccine, previous exposure, etc. The body's first line of defense would be inflamation response to bacteria and parasites, immune response with antibodies to virus. If the exposure exceeds the body's defenses, you will get sick to some degree. IF not, you won't even know you were exposed..no symptoms, no disease!
A well feeded,with a rational life and a good physical condition is less vulnerable!Avoiding to be exposed some times is not your choice!.
And more than all God helps if you help yourself!
other factors are the body which serves as portal of entry, the prolonged exposure and the number of pathogens present. The body's immune status, malnutrition etc.
OTher body defences: Skin, saliva, sweat, are the first line defences. Next are the immunoglobulins IgG IgA etc they agglutinate or combine with pathogens disabling their mechanism. Other chemicals like prostaglandins, pyrogens that cause fever and the blood vessels dilate or enlarge to bring more blood that carries the body's defences. Inflammation to localize the area of infection so that it would not spread and finally the lymph system, the B and T lymphocytes that directly act upon ang cytolize or destroy the pathogens

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