An immune deficiency is a broad term used to describe a weakened immune response.  In other words, the system in your body designed to make sure you're able to fight off infections, toxins, bad germs, and the like, is operating at a level less than normal.  I use the term quite frequently in my office to describe children who often experience ear infections, coughs, sniffles, etc, but it can easily be applied to adults who get flu like symptoms every year or have bad allergies.  Decreased function of the immune system.  That's the long and short of it. 

Much time is spent in the doctor's office every year because of immune deficiency.  People go, they get their anti-biotics or their Motrin, and then they go about their lives.  But is that course of action addressing the immune deficiency?  No, it is not.  It is addressing the result of the immune deficiency. 

Long ago, when we were young, we learned about cause and effect.  For every cause, there is a corresponding effect.  If you touch the hot stove, you're going to burn your hand.  If you eat the dirt on the floor, you might not feel well after.  And, from the personal memory bank, if you play with the electrical outlet, you'll shock yourself into child's first electrically induced lack of consciousness.  CAUSE...EFFECT.

Immune deficiency that leads to a baby, child, kid, teenager, or adult becoming more susceptible to bacterial and viral infections which further lead to the above described symptoms DOES have a cause.  The immune system, like any other system in the body, is an electrical system controlled by impulses/signals between the brain and the network of glands that comprise the immune system. 

Unimpeded, these signals flow back and forth through a circuitry akin to what you have with your electrical wires and fuses in your house to provide you with a fully functional, alert, and ready immune system; one that attacks foreign invading infections quickly, most often eradicating it before you even exhibit a symptom.  However, when interfered with, this system is thrown into a state of disarray, causing it to function shoddily.  That shoddy function means your immune response is weakened; it means you're more susceptible to infections and the symptoms that go along with them if your immune response isn't strong enough.

Two simple things that can interfere with your immune system are medications and the brainstem subluxation.  Medications designed to impact your electrical circuitry (nerve system) by speeding up actions or slowing them down (often blocking them completely).  For instance, you take a drug for a fever (your initial immune response for a more difficult to manage infection) and you've just weakened your immune function.  A brainstem subluxation irritates the hub of the electrical network that control the immune system, thus disrupting the signals and decreasing immune function.  Both meds and the subluxation have a simple fix.  For medications, don't be so quick to go down that road.  It treats effects; not cause.  Use it as the last resort that it is intended to be.  For the brainstem subluxation, a simple correction can be made to remove that.  It treats nothing, but eliminates cause.  Take away the cause; get the desired effect.