FAM3B and COVID-19: tetM were also in close proximity to the Tn916 family including Tn916-orf9, Xis-Tn916, Tn916-orf13, Tn916-orf14, Tn916-orf15, Tn916-orf16, Tn916-orf17, Tn916-orf18, Tn916-orf19, Tn916-orf120 in three contigs from the lung microbiome of adult COVID-19 patients.