Other common causative organisms include other Gram-negative aerobes, Streptococcus spp. and anaerobes.
The causative agent is Aeromonas salmonicida a non-motile, Gram-negative aerobic bacillus, typically 1 µm x 2 µm.
B. fragilis is a Gram negative short bacillus which demonstrates pleomorphism.
A fluorescent, Gram-negative bacterium was consistently isolated from diseased tissues onto King's B medium.
diplococcus shows a large number of Gram-negative diplococci present in a few of the pus cells (polymorph neutrophil leukocytes ).
Predisposing factors: H. pylori infection: A gram negative spiral microaerophilic bacillus specific for human gastric mucosa.
The slide shows a large number of Gram-negative diplococci present in a few of the pus cells (polymorph neutrophil leukocytes ).
These organisms include non-hemolytic and alpha-hemolytic streptococci, some Neisseria species, staphylococci, diphtheria and hemophilus organisms, pneumococci, yeasts, and Gram-negative rods.
Gram-negative organisms are found more frequently in chronic mastoiditis, and in young infants, which may be due to prolonged antibiotic therapy.
Similarly, infections with a number of gram negative bacteria (such as those in the gastrointestinal tract that can cause infection following aspiration) have a death rate of 25 to 50 percent.
UTIs in men are most likely to be caused by E. coli or another gram-negative bacterium.
In particular, infants start with antibodies to viruses and gram-positive organisms, but not to gram-negative organisms.
Gram-negative organisms are responsible for many diseases, including gonorrhea, pertussis (whooping cough), salmonella poisoning, and cholera.
Escherichia coli (E. coli) is another common gram-negative organism.
Treatment depends on whether the rot is caused by a gram positive or gram negative bacterial infection, but that's very difficult for the home aquarium buff to determine.
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