Over the last decade, interest in mycoplasmas has been greatly sti- lated by the spread of contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides subsp. mycoides SC, in Europe and Africa and the discovery of a possible association between mycoplasmas and AIDS. During this period there has also been a recognition by control authorities and int- national organizations, including the Office International des Epizooties, that mycoplasmas are major causes of economic loss in livestock and continue to be a problem in humans as a result of a range of chronic respiratory and...