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Copyright of Revista Alergia de Mexico is the property of Coleg. Mexicano de Inmunologia Clinica y Alergia A.C.; Soc. Lat. de Alergia, Asma e Inmunologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Cow's milk protein allergy is the most common food allergy among children. It can be diagnosed based on a guided history taking and using an oral food challenge (OFC), serum specific immunoglobulin E levels (sIgE), and skin prick tests (SPT). However, it is difficult to establish their diagnostic performance in the local population. Our objective was to assess the usefulness of tests used to diagnose cow's milk protein (CMP) allergy in the studied population., Population and Methods: Retrospective analysis of data from patients seen at the Unit of Allergy of a tertiary care pediatric hospital between 2015 and 2018. SPT and sIgE tests were done for milk, alpha-lactalbumin, beta-lactoglobulin, and casein, followed by an OFC, and the diagnostic usefulness of each test, as well as their combination, was established., Results: The tests of 239 patients were assessed. OFC was performed at the hospital in 54.8% of cases, via a rechallenge test at home in 35.5%, and through CMP intake by the mother in 9.6%. The highest specificity was observed with the casein SPT (96.7%; 95% confidence interval [CI]: 90.8-99.3) and the highest sensitivity, with the 4-allergen SPT and sIgE combination (55.3%; 95% CI: 45.7-64.6)., Conclusions: The study established the diagnostic usefulness of SPT and sIgE in the studied population., Competing Interests: None, (Sociedad Argentina de Pediatría.)

Introduction: International publications estimate a 7 %-17 % latex sensitization (LS) prevalence among health care workers, but values in Argentina are unknown., Objectives: To estimate the prevalence of latex sensitization and allergy among residents of a children's hospital using the immediate-reading prick test and to assess associated risk factors in this population., Population and Methods: Cross-sectional study. Residents, trainers, and Chief residents of the Departments of Pediatrics, Orthopedics, Surgery and Intensive Care were included between June and October 2017. All of them were administered a questionnaire (assessing atopic diseases and other risk factors) and underwent the immediatereading prick test. Total and latex-specific immunoglobulin E levels were determined in a subgroup of individuals (first- and fourth-year residents, surgical specialties, and intensive care)., Results: A total of 113 participants were included. LS prevalence was 7.96 % (95 % confidence interval: 3.70-14.58); 4 participants were allergic to latex. A history of latex-related symptoms (LRS) was significantly associated with a positive result in the immediate-reading prick test (p = 0.0196; odds ratio: 6.13; 95 % confidence interval: 1.44-26.04). There was no association between LS and the year of the residency program., Conclusions: The observed LS prevalence was 7.9 %. There was a significant relation between a history of LRS and a positive result in the immediate-reading prick test., Competing Interests: None, (Sociedad Argentina de Pediatría.)

The ARIA initiative was started during a World Health Organization workshop in 1999. The initial goals were to propose a new classification for allergic rhinitis, to promote the concept of multi-morbidity in asthma and rhinitis and to develop guidelines with stakeholders for world-wide use. ARIA is now focused on the implementation of emerging technologies for individualized and predictive medicine. MASK: MACVIA-Aria Sentinel Network uses mobile technology to develop care pathways that enable management by a multidisciplinary group or by patients themselves. An App for iOS and Android uses a visual analogue scale to assess symptom control and work productivity, as well as a clinical decision support system; it is associated with an interoperable tablet for health professionals. The escalation strategy uses recommendations of the European Innovation Partnership on Active and Healthy Ageing. The aim of ARIA's new approach is to provide an active and healthy life to people affected by rhinitis, regardless of age, gender or socioeconomic status, in order to reduce social and health inequalities caused by the disease.