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Although the presence and infectivity of SARS-CoV-2 in aerosol are now acknowledged, the underlying circumstances for its occurrence are still under investigation. The contamination of domiciliary environments during the isolation of SARS-CoV-2-infected patients in their respective rooms in individual houses and in a nursing home was investigated by collecting surface and air samples in these environments. Surface contamination was detected in different contexts, both on high and low-touch surfaces. To determine the presence of virus particles in the air, two sampling methodologies were used: air and deposition sampling. Positive deposition samples were found in sampling locations above the patient\u2019s height, and SARS-CoV-2 RNA was detected in impactation air samples within a size fraction below 2.5\u00a0\u03bcm. Surface samples rendered the highest positivity rate and persistence for a longer period. The presence of aerosolized SARS-CoV-2 RNA occurred mainly in deposition samples and closer to symptom onset. To evaluate the infectivity of selected positive samples, SARS-CoV-2 viability assays were performed, but our study was not able to validate the virus viability. The presented results confirm the presence of aerosolized SARS-CoV-2 RNA in indoor compartments occupied by COVID-19 patients with mild symptoms, in the absence of aerosol-generating clinical procedures.<\/jats:p>","DOI":"10.1038\/s41598-022-22679-y","type":"journal-article","created":{"date-parts":[[2022,10,27]],"date-time":"2022-10-27T10:03:55Z","timestamp":1666865035000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["SARS-CoV-2 air and surface contamination in residential settings"],"prefix":"10.1038","volume":"12","author":[{"given":"Gil","family":"Correia","sequence":"first","affiliation":[]},{"given":"Lu\u00eds","family":"Rodrigues","sequence":"additional","affiliation":[]},{"given":"Mariana","family":"Afonso","sequence":"additional","affiliation":[]},{"given":"Marta","family":"Mota","sequence":"additional","affiliation":[]},{"given":"Joana","family":"Oliveira","sequence":"additional","affiliation":[]},{"given":"Rui","family":"Soares","sequence":"additional","affiliation":[]},{"given":"Ana Lu\u00edsa","family":"Tom\u00e1s","sequence":"additional","affiliation":[]},{"given":"Anna","family":"Reichel","sequence":"additional","affiliation":[]},{"given":"Patr\u00edcia M.","family":"Silva","sequence":"additional","affiliation":[]},{"given":"Jos\u00e9 J.","family":"Costa","sequence":"additional","affiliation":[]},{"given":"Manuel Gameiro","family":"da Silva","sequence":"additional","affiliation":[]},{"given":"Nuno C.","family":"Santos","sequence":"additional","affiliation":[]},{"given":"Teresa","family":"Gon\u00e7alves","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,10,27]]},"reference":[{"key":"22679_CR1","doi-asserted-by":"publisher","first-page":"1199","DOI":"10.1056\/NEJMoa2001316","volume":"382","author":"Q Li","year":"2020","unstructured":"Li, Q. et al. 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