Gram-negative microorganisms

The fluoroquinolones are used in the treatment of infections caused by susceptible microorganisms. The fluoroquinolones are effective in the treatment of infections caused by gram-positive and gram-negative microorganisms. They are primarily used in the treatment of susceptible microorganisms in lower respiratory infections, infections of the skin, urinary tract infections, and sexually transmitted diseases. Ciprofloxacin, norfloxacin, and ofloxacin are available in ophthalmic forms for infections in the eyes. 

The aminoglycosides are used in the treatment of infections caused by susceptible microorganisms. The aminoglycosides are used primarily in the treatment of infections caused by gram-negative microorganisms. 

Antibiotics possess antibacterial activity and are used in the treatment of eye infections. Sulfonamides possess a bacteriostatic effect against a wide range of gram-positive and gram-negative microorganisms. They are used in the treatment of conjunctivitis, comeal ulcer, and other superficial infections of the eye. See the Summary Drug Table Select Ophthalmic Preparations and Chapter 6 for additional information on the sulfonamides. 

A number of Gram-negative microorganisms, including the important human pathogens Neisseria gonorrhoeae, Neisseria meningitidis and Haemophilus influenzae,... 

Antimicrobial Agents of First Choice and Alternative Choice for Treatment of Meningitis Caused by Gram-Positive and Gram-Negative Microorganisms]... 

Pseudomonas Pseudomonas are Gram-negative microorganisms ubiquitous and diverse in nature. They are generally heterotrophic and aerobic, but some... 

The flora of raw cotton in the field is different from that of raw baled cotton. Some data from the literature are summarized in Table III. Field-grown cottons and their plant parts contain many more gram-negative microorganisms and fungi than do green-house-grown cottons. The weeds that contaminate the cotton crop... 

As the cotton becomes poorer in quality, the gram-negative bacterial counts and the endotoxin levels increase markedly in the raw cotton, the hand cleaned fiber, and the leaf-like trash and seed trash that were removed from it (16). Tinged grades of cotton reach gram-negative microorganism counts of at least 150-160 million cfu/g. 

The gram-negative microorganism counts in the respirable dust were usually one log lower in the spinning than in the carding area of the mills. Endotoxin levels in the airborne respirable dust were also one log lower in the spinning than in the carding areas of the mills. The airborne dust levels of endotoxin corre-... 

The antimicrobial spectrum of aminopenicillins is similar to penicillin G, with the exception that they also act on a number of Gram-negative microorganisms. Both aminopenicillins are destroyed by staphylococcus penicillinase. 

Antibacterial activity of macrolides depends on the acidity of the medium. High activity is observed in neutral and basic media in comparison with acid. In particular, erythromycin is inactivated in the acidic medium of the stomach. Macrolides have a relatively broad spectrum of use, and they are active with respect to Gram-positive and Gram-negative microorganisms, achiomycetes, mycoplasma, spirochaeta, chlamydia. Bacteria Rickettsia, certain mycobacteria. Colon bacillus, blue-pus bacillus, shigella, salmonella, and so on. 

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