METHODS: The study was undertaken in a population specialized in peach cultivar located in the South-East of Spain. A clinical history plus prick testing was made with a panel of relevant inhalant allergens including peach pollen and with Pru p 3 and Pho d 2 (Profilin).
RESULTS: We evaluated 1800 cases aged between 3 and 90 y.o. Prevalence of sensitisation was: olive 33%, grass pollen 26%, Salsola kali 19%, Cupresus 17% and Parietaria 13%. Peach pollen was 22%. The analysis of prevalence to peach stratified by six years intervals showed: in the first (3-8 y.o. ) 6% with an increase to a maximum of 47% at the interval of 21-27 y.o. (P<0.001) From the total number of positive to peach pollen, the 40% was positive to Pru p 3. The clinical entities referred by the subjects were: rhinitis in 79% of the cases, asthma in 29%, urticaria in 24% and anaphylaxis in 18%. Most of the cases sensitized to peach pollen were also to the other pollens tested with only few cases monosensitised to peach pollen.
CONCLUSIONS: Sensitisation and allergy to peach pollen must be evaluated in areas with a high cultivars. Because most of the patients are also sensitized to other pollens, the clinical relevance of peach tree pollen must be established.