

![]() |
Mastoiditis is usually caused by a middle ear infection (acute otitis media). The infection may spread from the ear to the mastoid bone of the skull.
|
|
|
Gram-negative organisms are found more frequently in chronic mastoiditis, and in young infants, which may be due to prolonged antibiotic therapy.The main symptoms of mastoiditis are increasing earache, fever, and the development of redness and swe...
|
|
Mastoiditis is caused by the same types of bacteria which cause middle ear infections( Streptococcus pneumoniae and Haemophilus influenzae), as well as by a variety of other bacteria( Staphylococcus aureus, Pseuodomonas aeruginosa, Klebsiella, Esc...
|
|
|
Bacteria are prokaryotes(unicellular organisms with no membrane-enclosed nucleus) with simple structures that typically range in size from about 0.5 to 20 micrometers.Bacteria are named according to the binomial(two-name) system of nomenclature fi...
|
|
The bacterium Heliobacter pylori is the only one that can survive inside the human stomach. It causes gastritis and ulcers, but is generally treatable with a combination of antibiotics.
|