| Type | MGI:General | Description | spontaneous infection of connecting auditory tubes and lungs increase in bacteria in lung and spleen cultures, indicating disseminated infections on an antibiotic-supplemented diet, mice show reduced lung bacterial burden and increased survival, however normal ventilation is not restored moribund mice show an increase in streptococci and staphylococci in the lungs and spleen, especially Staphylococcus aureus |