Bacteroides fragilis bacteriophages

Bacteroides fragilis bacteriophages

These phages infecting Bacteroides fragilis, a very abundant anaerobic bacteria in the gut, belong to the family Siphoviridae with flexible tail (dsDNA, long non-contractile tails, capsids up to 60 nm). Phages infecting the host strain, B. fragilis HSP40 are considered to be human-associated, but phages infecting B. fragilis RYC2056 are more numerous and not human-associated.

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