The following is a partial list of the "B" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). This list continues the information at List of MeSH codes (B02). Codes following these are found at List of MeSH codes (B04). For other MeSH codes, see List of MeSH codes. The source for this content is the set of 2006 MeSH Trees from the NLM. – bacteria – atypical bacterial forms – l forms – spheroplasts – bacteria, aerobic – bacteria, anaerobic – Bacteroidetes – bacteroidaceae – bacteroides – Bacteroides fragilis – Porphyromonas – Porphyromonas endodontalis – Porphyromonas gingivalis – Prevotella – Prevotella intermedia – Prevotella melaninogenica – Prevotella nigrescens – Prevotella ruminicola – flavobacteriaceae – Capnocytophaga – Chryseobacterium – Flavobacterium – Ornithobacterium – flexibacteraceae – Cytophaga – Flexibacter – Rhodothermus – Sphingobacterium – biofilms – blood-borne pathogens – Chlorobiota – Chlorobium – Chloroflexota – Chloroflexus – "Cyanobacteria" – Anabaena – Anabaena cylindrica – Anabaena flos-aquae – Anabaena variabilis – Aphanizomenon – Cyanothece – Cylindrospermopsis – Microcystis – Nodularia – Nostoc – Nostoc commune – Nostoc muscorum – Plectonema – Synechococcus – Synechocystis – endospore-forming bacteria – gram-positive endospore-forming bacteria – gram-positive endospore-forming rods – bacillaceae – Bacillus – Bacillus anthracis – Bacillus cereus – Bacillus megaterium – Bacillus stearothermophilus – Bacillus subtilis – Bacillus thuringiensis – Clostridium – Clostridium acetobutylicum – Clostridium beijerinckii – Clostridium bifermentans – Clostridium botulinum – Clostridium botulinum type A – Clostridium botulinum type B – Clostridium botulinum type C – Clostridium botulinum type D – Clostridium botulinum type E – Clostridium botulinum type F – Clostridium botulinum type G – Clostridium butyricum – Clostridium cellulolyticum – Clostridium cellulovorans – Clostridium chauvoei – clostridium difficile – Clostridium histolyticum – Clostridium kluyveri – Clostridium perfringens – Clostridium sordellii – Clostridium sticklandii – Clostridium symbiosum – Clostridium tertium – Clostridium tetani – Clostridium tetanomorphum – Clostridium thermocellum – Clostridium tyrobutyricum – micromonosporaceae – Micromonospora – Saccharopolyspora – streptomycetaceae – Streptomyces – Streptomyces antibioticus – Streptomyces aureofaciens – Streptomyces coelicolor – Streptomyces griseus – Streptomyces lividans – Fusobacteriota – Fusobacterium – Fusobacterium necrophorum – Fusobacterium nucleatum – Leptotrichia – Propionigenium – Streptobacillus – gram-negative bacteria – anaplasmataceae – Anaplasma – Anaplasma centrale – Anaplasma marginale – Anaplasma ovis – Anaplasma phagocytophilum – Ehrlichia – Ehrlichia canis – Ehrlichia chaffeensis – Ehrlichia ruminantium – Neorickettsia – Neorickettsia risticii – Neorickettsia sennetsu –