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Karger Publishers, International Archives of Allergy and Immunology, 11(182), p. 1036-1045, 2021

DOI: 10.1159/000516155

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Bee- and Wasp-Venom Sensitization in Schoolchildren of High- and Low-Socioeconomic Status Living in an Urban Area of Indonesia

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

<b><i>Background:</i></b> There is not much known about venom allergy in tropical regions. Here, we studied the prevalence of specific IgE (sIgE) and skin prick test (SPT) reactivity and reported sting-related symptoms, in high- and low-socioeconomic status (SES) schoolchildren living in urban city of Makassar in Indonesia. <b><i>Methods:</i></b> Children from high- (<i>n</i> = 160) and low- (<i>n</i> = 165) SES schools were recruited. Standardized questionnaires were used to record information on allergic disorders as well as sting-related symptoms. Parasitic infection, SPT reactivity, and sIgE to <i>Apis mellifera</i> (bee-venom) as well as <i>Vespula spp.</i> (wasp-venom) were assessed. <b><i>Results:</i></b> SPT reactivity to bee- and wasp-venom was 14.3 and 12.7%, while the prevalence of sIgE was 26.5 and 28.5%, respectively. When SES was considered, prevalence of SPT to bee- and wasp-venom was higher in high-SES than in low-SES schoolchildren (bee: 22.8 vs. 5.7%, <i>p</i> &#x3c; 0.001; and wasp: 19.6 vs. 5.7%, <i>p</i> &#x3c; 0.001). Conversely, sIgE to both venoms was lower in high-SES than in low-SES (bee: 19 vs. 34%, <i>p</i> = 0.016; and wasp: 19 vs. 38%, <i>p</i> = 0.003). Furthermore, among SPT positive subjects, considerable proportion had no detectable sIgE to bee- (65.85%) or wasp-venom (66.67%). Altogether the sensitizations were rarely translated into clinical reaction, as only 1 child reported significant local reaction after being stung. No association with parasitic infections was found. <b><i>Conclusions and Clinical Relevance:</i></b> Sensitization against bee- or wasp-venom is quite prevalent among schoolchildren in Indonesia. The discordance between SPT and sIgE might suggest the direct (non-IgE) effect of venoms in skin reactivity. Recorded sensitizations had poor clinical relevance as they rarely translated into clinical symptoms.