{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T18:51:25Z","timestamp":1777661485376,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2024,9,1]],"date-time":"2024-09-01T00:00:00Z","timestamp":1725148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,9,1]],"date-time":"2024-09-01T00:00:00Z","timestamp":1725148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["High Altitude Medicine &amp; Biology"],"published-print":{"date-parts":[[2024,9,1]]},"abstract":"<jats:p>\n                    Grimm, Mirjam, Lucie Ziegler, Annina Seglias, Maamed Mademilov, Kamila Magdieva, Gulzada Mirzalieva, Aijan Taalaibekova, Simone Suter, Simon R. Schneider, Fiona Zoller, Vera Bissig, Lukas Reinhard, Meret Bauer, Julian M\u00fcller, Tanja L. Ulrich, Arcangelo F. Carta, Patrick R. Bader, Konstantinos Bitos, Aurelia E. Reiser, Benoit Champigneulle, Damira Ashyralieva, Philipp M. Scheiwiller, Silvia Ulrich, Talant M. Sooronbaev, Michael Furian, and Konrad E. Bloch. SARS-CoV-2 Transmission during High-Altitude Field Studies.\n                    <jats:italic toggle=\"yes\">High Alt Med Biol<\/jats:italic>\n                    . 25:197\u2013204, 2024.\n                  <\/jats:p>\n                  <jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Throughout the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) pandemic, virus transmission during clinical research was of concern. Therefore, during high-altitude field studies performed in 2021, we took specific COVID-19 precautions and investigated the occurrence of SARS-CoV-2 infection.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>From May to September 2021, we performed studies in patients with chronic obstructive pulmonary disease (COPD) and in healthy school-age children in Kyrgyzstan in high-altitude facilities at 3,100 m and 3,250 m and at 760 m. The various implemented COVID-19 safety measures included systematic SARS-CoV-2 rapid antigen testing (RAT). Main outcomes were SARS-CoV-2-RAT-positive rate among participants and staff at initial presentation (prevalence) and SARS-CoV-2-RAT-positive conversion during and within 10 days after studies (incidence).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Among 338 participants and staff, SARS-CoV-2-RAT-positive prevalence was 15 (4.4%). During mean \u00b1 SD duration of individual study participation of 3.1\u2009\u00b1\u20091.0 day and within 10 days, RAT-positive conversion occurred in 1\/237(0.4%) participants. Among staff working in studies for 31.5\u2009\u00b1\u200929.3 days, SARS-CoV-2-RAT-positive conversion was 11\/101(10.9%). In all 338 individuals involved in the studies over the course of 15.6 weeks, the median SARS-CoV-2-RAT-positive incidence was 0.00%\/week (quartiles 0.00; 0.64). Over the same period, the median background incidence among the total Kyrgyz population of 6,636 million was 0.06%\/week (0.03; 0.11),\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      = 0.013 (Wilcoxon rank sum test).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Taking precautions by implementing specific safety measures, SARS-CoV-2 transmission during clinical studies was very rare, and the SARS-CoV-2 incidence among participants and staff was lower than that in the general population during the same period. The results are reassuring and may help in decision-making on the conduct of clinical research in similar settings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/ham.2023.0128","type":"journal-article","created":{"date-parts":[[2024,4,18]],"date-time":"2024-04-18T09:36:46Z","timestamp":1713433006000},"page":"197-204","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["SARS-CoV-2 Transmission during High-Altitude Field Studies"],"prefix":"10.1177","volume":"25","author":[{"given":"Mirjam","family":"Grimm","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland."},{"name":"Swiss-Kyrgyz High Altitude Medicine and Research Initiative, Zurich, Switzerland."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lucie","family":"Ziegler","sequence":"additional","affiliation":[{"name":"Department of Respiratory Medicine, 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