pseudomonas virus 42 pseudomonas virus 42 pseudomonas virus 42, formerly pseudomonas phage 42, is a bacteriophage known to infect pseudomonas bacteria. pseudomonas virus 42 virus classification (unranked): virus realm: duplodnaviria kingdom: heunggongvirae phylum: uroviricota class: caudoviricetes order: caudovirales family: myoviridae genus: incertae sedis species: pseudomonas virus 42 synonyms pseudomonas phage 42