American Society for Microbiology, Microbiology Spectrum, 3(9), 2021
DOI: 10.1128/spectrum.01330-21
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To date, including 318,522 participants, this is the largest population-based study with broad national participation where tests and questionnaires have been sent to participants’ homes. We found that more emphasis from national and local authorities toward the risk of infection should be placed on age of tested individuals, type of occupation, as well as exposure in local communities and households.