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Table 1 Examples of genera detected previously as background contamination in negative controls from respiratory microbiota studies [4, 8, 11, 52]

From: How low can we go? The implications of low bacterial load in respiratory microbiota studies

Abiotrophiaa Bifidobacterium Curvibactera Halocella Microlunatus Pseudoclavibacter Staphylococcus
Acidocella Blastococcus Deinococcus Herbaspirilluma Moryella Pseudoflavonifractor Stenotrophomonasa
Acidovoraxa Blautia Delftia Hoeflea Neisseria Pseudomonasa Streptococcusa
Acinetobactera Bosea Devosia Hydrotaleaa Nevskia Pseudorhodoferax Sulfuritaleaa
Actionmyces Bradyrhizobiuma Dialister Ilumatobacter Niastella Pseudoxanthomonasa Suttonella
Adhaeribacter Brevibacillusa Dietziaa Intestinibacter Nocardioides Psychrobacter Tericibacter
Aerococcus Brevibacterium Dorea Janibacter Novosphingobium Quinella Thauera
Aeromicrobiuma Brevundimonasa Duganella Janthinobacteriuma Ochrobactruma Ralstoniaa tm7
Afipiaa Brochothrix Dyadobacter Johnsonella Olivibactera Rhizobiuma Treponema
Agrococcus Brooklawnia Dyella Kingellaa Oscillospira Rhodococcusa Trichococcus
Alcaligenes Burkholderiaa Eggerthella Klebsiella Oxalobactera Roseateles Tsukamurella
Alcanivorax Cadidatus pelagibacter Elusimicrobium Kocuria Paenibacillusa Roseburia Tumebacillus
Alicycliphilus Cadidatus_alysiospaera Enhydrobactera Lachnoanaerobaculum Papilibacter Roseomonasa Tyzzerella
Alistipes Campylobacter Enterobacter Lactobacillus Parabacteroides Rothia Unclassified Gp 2 Acidobacteria
Aminobacter Capnocytophagia Enterococcus Lactococcus Paracoccusa Rubellimicrobium Undibacteriuma
Anaerococcus Cardiobacteriuma Erysipelatoclostridium Lanoclostidium Parasutterella Ruegeria Vampirovibrio
Anaeromyxobacter Catenibacterium Escherichia_Shigellaa Lanospira Parvimonas Ruminococcus Variovoraxa
Anaerotrucus Caulobactera Eubacterium Leptothrix Patulibacter Runiniclostridium Veillonellaa
Anoxybacillus Cellvibrio Facklamia Leptotrichia Pedobactera Saccharopolyspora Wautersiella
Aquabacteriuma Christensenella Faecalibacterium Limnobacter Pedomicrobium Salinicoccus Xanthomonas
Arthrobactera Chryseobacteriuma Fastidiosipila Massiliaa Pelomonasa Schlegelella Xlyanibacter
Asticcacaulis Cloacibacterium Flavobacterium Megasphaeraa Peptococcus Seleomonas  
Atopobium Clostridium Flavonifractor Meiothermus Petoniphilus Serratia  
Aurantimonasa Collinsella Fusobacterium Mesorhizobiuma Phyllobacteriuma Shewanella  
Azoarcus Comamonasa Gemella Methylobacteriuma Pilimelia Slackia  
Azospira Coprococcus Geobacillus Methylophilus Polaromonas Solobacterium  
Bacillusa Corynebacteriuma Geodermatophilus Methylopila Porphyromonas Sphingobacteriuma  
Bacteroides Craurococcus Gordonia Methyloversatilis Prevotellaa Sphingobiuma  
Beijerinckia Cupriavidus Granulicatellaa Microbacterium Propionibacteriuma Sphingomonasa  
Beutenbergia Curtobacterium Haemophilus Micrococcus Pseudobutyrivibrio Sphinogpyxis  
  1. It is important that negative controls are included in all studies of the microbiota in low bacterial load specimens, as background contamination in sterile reagents and kits is likely to be batch-specific
  2. aIndicates genera detected as contaminants in multiple studies