A review on indoor environmental quality in sports facilities: Indoor air quality and ventilation during a pandemic

Because of COVID-19, the indoor environmental quality (IEQ) in sports facilities has been a concern to environmental health practitioners. To develop an overall understanding of the available guidelines and standards and studies performed on IEQ in sports facilities, an extensive literature study was conducted, with the aim of identifying: (1) indicators that are being used to assess IEQ in different sports facilities;(2) indicators that are potentially interesting to be used to assess indoor air, in particular;(3) gaps in knowledge to determine whether sports facilities are safe, healthy and comfortable for people to stay and perform their activities. The outcome indicates that most current standards and previous investigations on IEQ in sports facilities mainly focused on dose-related indicators (such as ventilation rate), while building-related indicators (such as ventilation regime) and occupant-related indicators (such as IEQ preferences) were rarely considered. Little attention is given to the fact that ventilation systems may play an important role in the air quality of the location, and few investigations have been performed on the transmission of SARS-CoV-2. This study recommends more research into both occupant and building-related indicators as well as cross-modal effects between various IEQ factors for developing future standards on sports facilities.

Barriers and facilitators in the implementation of ASP in Mexico and the impact of COVID-19

Background. Hospital antimicrobial stewardship programs (ASP) involve a continuous effort by health institutions to monitor and optimize the use of antimicrobials. In this study, we aimed to explore barriers and opportunities in the implementation of ASP perceived by personnel of Mexican hospitals, as well as their views on the impact of COVID-19 in ASP activities. Methods. An online survey was applied to a purposive sample of 40 hospitals that perform regular antimicrobial stewardship activities in Mexico, during the last trimester of 2021. Results. A total of 40 hospitals (62.5% public and 37.5% private) in 13 states in Mexico responded to the survey. Regarding the perception of barriers, they identified the overload of activities (73%), hospital reconversion due to COVID-19 (65%), the scarcity of human resources, and resistance of personnel to new procedures (63% each). The main perceived facilitators were the support by hospital authorities (60%) and the commitment by the ASP team and health professionals in the implementation of ASP (48%). Only 15% of hospitals reported that support by health authorities or other hospitals were factors favoring implementation. The main reported changes due to COVID-19 were: temporary suspension of ASP activities (60%);greater workload due to increased prescription of antimicrobials (33%);involvement in interventions (such as education and guidelines) directed to improve antimicrobial use in COVID-19 patients (18%), as well as implementation of new protocols in pharmacy (44%) and microbiology laboratory (51%). 18% reported no changes in ASP. Conclusion. Implementation of ASP in Mexican Hospitals could be strengthened by the inclusion of sufficient human resources with protected time for ASP activities, the active involvement of hospital authorities, as well as encouraging the training and leadership of ASP teams. The impact of COVID-19 was two-way: the stagnation of the program in some hospitals, as well as the active participation in the response to the emergency, in other hospitals.

PERCEPTIONS OF TOURISM IN VILLA DE ZAACHILA, OAXACA, MEXICO IN RELATION TO COVID-19 AND ITS IMPLICATIONS FOR SUSTAINABLE DEVELOPMENT

The research analyzes the impacts of tourism in the Villa de Zaachila, Oaxaca, considering community perceptions and their relationship with sustainable development in the context of COVID-19. A five-point Likert-type scale was used, over a threeyear period, considering time variables (before, during, and after) related to the pandemic and its link with social, economic, and environmental issues. Representative local stakeholders in the tourism sector were interviewed using qualitative convenience sampling. Community tourism operators' perception of tourism activity was erroneous, as they considered it irrelevant. However, they were indirectly dependent on the consumption of goods and services by visitors from outside the community. Changes and adaptations were made at the community level that made it possible to cope with the pandemic and identify the importance of tourists to the community's economy and development. The authors conclude that perceptions play a significant role in the analysis of reality and in the success of any community tourism project to achieve development objectives. © 2022 Interciencia Association. All rights reserved.

Airborne SARS-CoV-2 in home and hospital environments investigated with a high-powered air sampler.

BACKGROUND: The initial aim was to study the effects of face masks worn by recently infected individuals on the airborne spread of SARS-CoV-2, but findings motivated us to proceed with comparing the presence of SARS-CoV-2 in air samples near infected individuals at home with those near infected intensive care unit (ICU) patients. AIM: To assess the presence of SARS-CoV-2 in the air of homes of infected individuals and in ICU rooms of critically ill patients with COVID-19 who were undergoing different forms of potential aerosol-generating medical procedures. METHODS: A high-volume air sampler method was developed that used a household vacuum cleaner with surgical face masks serving as sample filters. SARS-CoV-2 RNA was harvested from these filters and analysed by polymerase chain reaction. Fog experiments were performed to visualize the airflow around the air sampler. Air samples were acquired in close proximity of infected individuals, with or without wearing face masks, in their homes. Environmental air samples remote from these infected individuals were also obtained, plus samples near patients in the ICU undergoing potential aerosol-generating medical procedures. FINDINGS: Wearing a face mask resulted in a delayed and reduced flow of the fog into the air sampler. Face masks worn by infected individuals were found to contain SARS-CoV-2 RNA in 71% of cases. SARS-CoV-2 was detected in air samples regardless of mask experiments. The proportion of positive air samples was higher in the homes (29/41; 70.7%) than in the ICU (4/17; 23.5%) (P < 0.01). CONCLUSION: SARS-CoV-2 RNA could be detected in air samples by using a vacuum cleaner based air sampler method. Air samples in the home environment of recently infected individuals contained SARS-CoV-2 RNA nearly three times more frequently by comparison with those obtained in ICU rooms during potential aerosol-generating medical procedures.

Testing of outward leakage of different types of masks with a breathing manikin head, ultraviolet light and coloured water mist

Since the outbreak of COVID-19, wearing a mask, voluntary or obligatory, has led to diverse and numerous designs. Guidelines for minimum requirements include tests for visual inspection, strength, filtration, and breathing resistance, but not for the fit of a mask. The fit of a mask was assessed by testing the outward leakage of exhaled breath based on the visualization of coloured mist exhaled by a manikin head. Fourteen masks were selected based on differences in design, such as type of material, shape (cheek wings vs. none), filter type, and the number of layers. Leakage expressed in mean mist percentages (visualized with a camera), patterns of coloured mist left inside the masks, as well as visual fit of the masks on the manikin head, showed that a loose fit mask results in more leakage. Also, combining quantitative with qualitative assessment proved to be complementary. Future tests should be conducted on a range of users, covering the best fit over time as well breathability, use, and comfort. The use of face masks, whatever their characteristics, seem an adequate strategy to reduce the dispersion of potential ‘infected’ aerosols into the space from people, as opposed to not wearing one. © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Pie diabético y COVID-19. Número de consultas y gravedad de las lesiones comparadas con 2019

At the end of 2019 a novel coronavirus was identified as a cause of pneumonia in Wuhan, China. This emerging disease has caused an unexpected turn in the economy and in society, which has led to the necessity of social isolation and confinement. Diabetic foot consultation was affected by the ongoing situation. The aim of this study was to compare the number of medical visits and the severity of new lesions at presentation at the Diabetic Foot Unit during June 2020 compared to June 2019. Three hundred and fifty six medical visits were analyzed, resulting in a 29% reduction in the number of visits during 2020. The number of patients presenting with new lesions increased from 6.4% to 10.3% (p = ns) during pandemic. The number of visits from the patients' relatives was higher during June 2020 (16.3% vs. 1.4%) (p < 0.05). Controls of feet without active lesions (i.e.: closed wound or periodic control) decreased from 16.8% to 4.5% (p < 0.05). Consultation for medical prescription only was higher in 2020 (22.4%) than in 2019 (7.3%) (p < 0.05). In our sample, there were no significant differences in the severity of new lesions at presentation or on the days of evolution of new ones in comparison with the previous year. During 2020, telehealth consults represented a 7% of all medical visits. There were no major amputations during 2019 and 4 during 2020. Given the dynamics of confinement, further studies about this topic are required to make sound and accurate decisions. A fines de 2019 se identificó un nuevo coronavirus como causa de neumonía, en Wuhan, China. Esta nueva enfermedad (COVID-19) causó un inesperado vuelco en la economía y en la sociedad. El aislamiento social y el confinamiento provocaron cambios en la dinámica de las consultas médicas. En este estudio se compararon la cantidad de consultas y la gravedad de las lesiones nuevas en la Unidad de Pie Diabético entre junio de 2020 y junio de 2019. Se analizaron en total 356 visitas médicas, hallando un 29% de reducción en el número de visitas en 2020. El número de consultas por lesión nueva aumentó del 6.4% a 10.3% (p = ns) durante la pandemia. Las visitas de familiares por diversos motivos en lugar del paciente aumentaron durante 2020 de 1.4% a 16.3% (p < 0.05). Los controles de pacientes sin lesión (pie de alto riesgo, control post alta), disminuyeron de 16.8% a 4.5% (p < 0.05) y también aumentaron las visitas únicamente para prescripciones médicas (7.3% a 22.4%, p < 0.05). En nuestra muestra, no hubo diferencias significativas en la gravedad de la presentación ni en los días de evolución de las lesiones nuevas en relación al año anterior. Durante 2020 las teleconsultas representaron el 7% del total. En junio de 2019 no se registraron amputaciones mayores y en 2020 se registraron 4. Dada la dinámica del confinamiento, se requiere un continuo seguimiento y nuevos estudios para evaluar las consecuencias que se producirán en los pacientes con esta enfermedad con el fin de tomar decisiones acertadas.