An order of highly pleomorphic, gram-negative bacteria including both pathogenic and saprophytic species.

Infections with bacteria of the order MYCOPLASMATALES.

A genus of gram-negative organisms including saprophytic and parasitic or pathogenic species.

An organism originally isolated from sewage, manure, humus, and soil, but recently found as a parasite in mammals and birds.

A genus of gram-negative, mostly facultatively anaerobic bacteria in the family MYCOPLASMATACEAE. The cells are bounded by a PLASMA MEMBRANE and lack a true CELL WALL. Its organisms are pathogens found on the MUCOUS MEMBRANES of humans, ANIMALS, and BIRDS.