Severe Reaction to Flu shot: Is it really an allergy?

October 27th, 2009

I had a fascinating case which I think all doctors and some patients need to pay attention to. I recently saw a woman who had an anaphylactic reaction after receiving the flu shot- for the 1st time. It is exceptionally, rare to have anaphylaxis(the most severe allergic reaction)after a flu shot. This woman’s case will bring out an important point that may save others.

This patient didn’t have a history of egg allergy, which is the focus of most doctor’s questions before getting the flu shot. In her case, there was no history of egg allergy,and in fact she ate eggs that same morning with no reaction. She could have been allergic to the vaccine itself, which is possible, and I recently had a patient that I skin tested with the flu vaccine who showed a positive test. Also many times, patients can be allergic to the preservatives in the flu vaccine: such as thimerosol or formaldehyde. This can be avoided by using the preservative free, single dose flu vaccine. The interesting piece of history in my patient with the severe allergic reaction was when she mentioned she was allergic to band-aids; and, she added matter-of-factly that she was latex allergic. Ahh! This was important.The patient showed me the package insert from the vaccine she was given. It was from a multi-dose vial, which means the injection had to be drawn up through a rubber stopper. It is most likely she received small particles of latex-rubber in the injection and this is what precipitated her anaphylactic reaction to the flu shot.

My recommendation for doctors is : ask and check to make sure your patient isn’t latex allergic; if they are use a single dose vial. My advice to all patients, if you have latex-rubber allergy be sure to ask your doctor for a single-dose vial.

Dean Mitchell, MD

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 29th, 2009

OVERALL COUNT CONSIDERED:
MODERATE

Pollen         Grains per cubic meter         Considered
TREES                  0                 
GRASSES            2                  LOW
WEEDS             14                  MODERATE                  
SPORES          1,072              MODERATE
RAGWEED            12                   MODERATE     

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 24th, 2009

OVERALL COUNT CONSIDERED:
MODERATE

Pollen         Grains per cubic meter         Considered
TREES                  0                 
GRASSES             2                  LOW
WEEDS                7                  LOW                  
SPORES            1,118             MODERATE
RAGWEED              10                    MODERATE                  
 

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 15th, 2009

OVERALL COUNT CONSIDERED:
HIGH

Pollen         Grains per cubic meter         Considered
TREES                  0                  
GRASSES           21                  HIGH
WEEDS                8                  LOW                  
SPORES          2,295               MODERATE
RAGWEED             57                     HIGH     

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 14th, 2009

OVERALL COUNT CONSIDERED:
MODERATE

Pollen         Grains per cubic meter         Considered
TREES                  0                  
GRASSES            15                  MODERATE
WEEDS                 7                  LOW                  
SPORES           1,249               MODERATE
RAGWEED               15                    MODERATE

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 10th, 2009

OVERALL COUNT CONSIDERED:
HIGH

Pollen         Grains per cubic meter         Considered
TREES                  0                  
GRASSES             3                  LOW
WEEDS                7                  LOW                  
SPORES          2,867               HIGH
RAGWEED             36                    HIGH     

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 9th, 2009

OVERALL COUNT CONSIDERED:
MODERATE

Pollen         Grains per cubic meter         Considered
TREES                   0                  
GRASSES              2                  LOW
WEEDS                 4                  LOW                  
SPORES            940                 LOW
RAGWEED               20                    MODERATE        

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 8th, 2009

OVERALL COUNT CONSIDERED:
MODERATE

Pollen         Grains per cubic meter         Considered
TREES                  0                 
GRASSES            11                  MODERATE
WEEDS                 4                  LOW                  
SPORES            1,251               LOW
RAGWEED              48                    MODERATE     

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 3rd, 2009

OVERALL COUNT CONSIDERED:
HIGH

Pollen         Grains per cubic meter         Considered
TREES                  0                  
GRASSES            76                  HIGH
WEEDS               24                  MODERATE                  
SPORES           12,137              HIGH
RAGWEED              57                      HIGH            

UMDNJ-University Hospital Aerobiology Service Pollen & Mold Count

September 2nd, 2009

OVERALL COUNT CONSIDERED:
VERY HIGH

Pollen         Grains per cubic meter         Considered
TREES                  0                  
GRASSES           15                    MODERATE
WEEDS                4                      LOW                           
SPORES             664                  LOW
RAGWEED             137                    VERY HIGH