Study of Excipients in Delayed Skin Reactions to mRNA Vaccines: Positive Delayed Intradermal Reactions to Polyethylene Glycol Provide New Insights for COVID-19 Arm.

BACKGROUND: Skin local reactions to mRNA COVID-19 vaccines have been linked to the use of vaccine excipients. The aim of the study is to evaluate the role of skin testing excipients in delayed skin reactions due to mRNA COVID-19 vaccines. METHODS: Skin testing among a group of healthcare workers with skin reactions due to mRNA vaccines was performed. Patch testing and intradermal testing (IDT) with polyethylene glycol (PEG)-400, PEG-2000, trometamol, and 1,2-dimyristoyl-sn-glycero-3-phosphocholine were performed. Healthcare workers without skin reactions to vaccines were used for skin testing as controls. RESULTS: Thirty-one healthcare workers (from a total of 4315 vaccinated healthcare workers) experienced cutaneous adverse vaccine reactions. Skin testing was performed in sixteen of the healthcare workers (11 delayed large local reactions (DLLR) and 5 widespread reactions). Positive IDT for PEG-2000 1% in DLLR was seen in 10 (90.9%) patients, in comparison with one (16.6%) individual with a delayed widespread reaction. Delayed positive IDT reactions for PEG-2000 1% on day 2 were observed in three (27.3%) patients with DLLR. Patch testing of the excipients was negative. Among 10 controls, only one exhibited a transient positive IDT reaction to PEG-2000 1%. CONCLUSIONS: Immediate and delayed reactions to IDT are frequently detected in patients with DLLR. The observation of positive delayed intradermal reactions to PEG disclosed only in patients with DLLR reinforces a possible role of PEG in the development of these reactions. Skin testing of other excipients is of little importance in clinical practice.

[Description of an intervention to prevent pressure-induced skin lesions caused by personal protective equipment (PPE) during the care of patients with COVID-19]. / Descripción de una intervención para prevenir lesiones cutáneas por presión provocadas por los equipos de protección personal (EPIs) durante la atención de pacientes con COVID-19.

OBJECTIVE: To describe a strategy designed to avoid pressure-related skin lesions related to the use of personal protective equipment (PPE). METHODS: This was a prospective descriptive observational study. STUDY POPULATION: healthcare professionals at the Parc Salut Mar (Barcelona) who used PPE for protection against COVID-19 between March 30 and June 15, 2020. INTERVENTION: Each professional was provided with an individual kit to prevent PPE-induced lesions, friction, or moisture. A multidisciplinary surveillance team was deployed for the early detection of these adverse events. RESULTS: Individual kits were provided to 1044 professionals, 32 of whom were scheduled for in-person medical assessments. Six participants (0.57%) developed Stage III or IV pressure ulcers, 24 (2.3%) had dermatitis, folliculitis, eczema and two participants did not show for their appointments. The overall rate of pressure ulcers was 0.57%; for dermatitis it was 2.3%. CONCLUSIONS: The use of preventive measures appears to be effective in preventing facial pressure ulcers induced by EPIs among healthcare professionals. Our resultsalso underscore the importance of expanding preventive measures to include not only pressure ulcers but also dermatitis.

Objetivos: Describir los resultados de una estrategia diseñada para evitar lesiones cutáneas por presión relacionadas con la utilización de los equipos de protección individual (EPIs). Metodología: Estudio descriptivo observacional prospectivo realizado entre marzo y junio de 2020 en profesionales del Parc de Salut Mar (PSMAR) que utilizaron EPIs en áreas de pacientes diagnosticados de COVID-19. Un servicio de vigilancia multidisciplinar se activó con el fin de realizar una detección precoz. Se suministró de forma individualizada a 1044 profesionales materiales para prevención de lesiones por presión, fricción y humedad de los EPIs sobre la piel de la cara. Resultados: De todos los profesionales, 32 fueron citados para una valoración presencial por lesiones: 6 presentaron úlceras por presión en estadios III y IV, 24 dermatitis, foliculitis y eczemas. La tasa de presentación de úlceras fue del 0,57% y la de dermatitis del 2,30% de la población de estudio. Conclusión: Los resultados de la aplicación de las medidas especificadas indican que han sido eficaces para prevenir úlceras por presión en la región de la cara provocadas por los EPIs. La adopción de medidas de prevención no solo para prevenir ulceras por presión sino para la prevención de dermatitis se hacen imprescindibles en situaciones en las que se requiere el uso continuado de EPIs en la región de la cara.

SARS-CoV-2 Transmission from Presymptomatic Meeting Attendee, Germany.

During a meeting in Munich, Germany, a presymptomatic attendee with severe acute respiratory syndrome coronavirus 2 infected at least 11 of 13 other participants. Although 5 participants had no or mild symptoms, 6 had typical coronavirus disease, without dyspnea. Our findings suggest hand shaking and face-to-face contact as possible modes of transmission.