Articles on Medical Diseases and Conditions

Brain abscess is most commonly due to direct extension of infection from infected middle ear, mastoid sinus, or paranasal sinuses; traumatic injuries, or infected prostheses. There can also be more distant spread from the lungs or from infected emboli. There is increased incidence in immunosuppressed patients. The most frequent organisms cultured are various streptococci, Bacteroides, […]

The three major sources of anaerobic organisms are the dental and mouth area, the lower intestinal tract (ileum and colon), and the female external genital tract (vagina and vulva area). Anaerobes comprise about 95% of the bacterial flora of the colon and outnumber aerobes in the mouth and vagina. From the mouth the organisms can […]