Alpha-gal allergy was initally discovered to be an allergy triggered by the bite of the lone star tick (Amblyomma americanum). It is now known to be likely caused by other species of ticks, as well as chiggers, and perhaps other bugs.
The bugs' bite can cause a bizarre change in the victim’s immune system.
Not everybody who is bitten by a tick develops an allergy to red meat. However, those who do might take months before noticing that eating meat has become a problem.
For some, a trip to the emergency room is their first clue!
Millions of people likely have no idea that they feel lousy due to this allergy, or that a tick bite had anything to do with it. Massive numbers of people suffer chronic ailments triggered by ticks and other bugs, but don’t even know they were bitten. Those who have noticeable skin reactions after getting bug bites tend to be more aware.
Symptoms of Meat Allergy
Like many food allergies, runny nose, nausea, hives, headaches, breathing difficulties, diarrhea, and indigestion are common symptoms. Severe or life-threatening anaphylactic reactions are not unusual, and deaths have been documented.
However, there is NO SUCH THING AS THE SYMPTOMS OF ALPHA GAL; IT CAN BE DIFFERENT FOR EACH PERSON.
There are many more symptoms that folks discovered were being caused by alpha gal allergy. How did they find out? They vanished after having SAAT performed! Whatever symptoms alpha gal causes YOU are what will get better with effective corrective treatment.
This is discussed in my medical paper (You can download it and read it when you've finished this article).
How Was Alpha-gal Meat Allergy Discovered?
For as long as humans and ticks have coexisted, it is likely this condition has been present, but not recognized.
In 1987, Dr. Sheryl van Nunen of Australia documented numerous cases of meat allergy correlated with tick bite. Strangely, her research findings were not reported until 2006 and finally published in 2009. At the time, there were more cases documented in Australia than anywhere else in the world.
The alpha-gal allergy (also known as mammalian meat allergy) was not recognized in the United States prior to 2006.
A doctor from the University of Virginia began investigating alpha-gal allergy... but not initially in consideration of tick bites. He was studying allergic reactions to a cancer drug called cetuximab, which was put on the market in 2004. During early drug trials, some cancer patients had allergic reactions, some very severe—landing them in the hospital. The drug contains a protein obtained from mice… but it also has alpha-gal molecules!
It had been known to science that alpha-gal could trigger bad immune system reactions; it would prevent organ transplants from animals to humans. Coincidentally, insights into the tick component came about when the UVA doctor developed the allergy, himself, after hiking.
They determined that lone star ticks have alpha-gal molecules in their gut or saliva, which they get from feeding on other mammals. They inject alpha-gal into the bloodstream of humans with their bite. This triggers an excessive production of antibodies called IgE (immunoglobulin E).
Lone star ticks spread the disease Rocky Mountain spotted fever. At the time, it was not reported that other tick-borne infection (including Lyme disease) triggered the meat allergy; it may be an unfortunate, but coincidental consequence.
In addition to lone star tick bites, one could certainly become infected by bites from ticks carrying Lyme disease-causing bacteria, as well as numerous other bacteria, single-celled parasites, fungi, and viruses.
Cases of alpha-gal allergy have been now documented throughout the world. The lone star tick is spread by birds, rodents, deer and other animals. Birds drop the ticks wherever they may fly.
Lone star ticks are very hardy; they can thrive in many environments. The map from the Centers for Disease Control depicts that lone star tick’s southeastern geographic distribution is massive! There is no disputing their presence, as is the case with blacklegged ticks associated with Lyme disease. It has been since reported that other species of ticks, as well as chiggers apparently cause alpha gal allergy, too.
How Do Doctors Diagnose Alpha-gal Allergy?
Unfortunately, tick bite victims often do not know they have been bitten or see the tick that was the culprit. Only some people develop rashes from tick bites.
Diagnosis alpha-gal allergy is greatly driven by patients telling their doctor that they have suddenly developed of allergy to red meat. The patient typically reports never having had a problem throughout his or her life.
A blood test can detect and measure alpha-gal antibodies in your blood. However, like many other blood tests, it does not provide absolute proof; it is a good screening test.
Oddly, a person can show a positive blood test, but not have the meat allergy. This is not isolated to alpha-gal testing; it is commonly the case with testing for many allergies.
Skin allergy tests can also be performed by an allergist. The doctor pierces the skin and exposes it to extracts of red meat. A hive (a raised bump) will develop at the spot tested if the alpha-gal allergy exists.