SIgE reactivities to allergens in patients from different
months
Figure 4 displayed the prevalence pattern of allergens in a year month.
Prevalence of dog dander and mold mix in a year month is very stable.
The prevalence of other allergens fluctuates from January to December.
Peaks of tree pollen mix are located in April and October when the
prevalence is much higher than in other months. The prevalence of German
cockroach and house dust mite sensitization varied obviously during the
12 months, but it did not vary as much as sensitization to the tree
pollen mix. For German cockroaches, the peak was in June to August, when
the prevalence was as high as approximately 28%, and the trough
occurred in October when the prevalence was as low as 18%. The
prevalence of other months fluctuated between 20% and 25.8%. The
prevalence of house dust mite sensitization increased starting in April
and rises to peak in July and then gradually decreases and tends to
balance from October. The prevalence of food allergen sensitization also
fluctuated among months. The prevalence of crab and shrimp sensitization
was somewhat similar to that of house dust mites. Their prevalence
patterns increased from May and formed a large and smooth peak in June,
July and August, decreased in September and tended to stabilize starting
in October. Fluctuations in the prevalence of egg whites and cow’s milk
sensitization were smaller than those in crab and shrimp, but peaks
existed. The peaks for cow’s milk and egg whites were located in May and
June, respectively.