"Airport air sampling captures COVID, influenza viruses" "Air sampling at 4 US airports in 2023 and 2024 detected SARS-CoV-2 in over 98% of samples and influenza A in over 17%, according to a study published in PLOS Global Public Health." Source: https://www.cidrap.umn.edu/covid-19/airport-air-sampling-captures-covid-influenza-viruses Study: https://journals.plos.org/globalpublichealth/article?id=10.1371/journal.pgph.0006810