Gram positive


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Related to Gram positive: Gram negative

Gram positive

Used of a micro-organism that when stained by Gram's method resists decolorization with acetone and retains the methyl violet dye, thus appearing blue, purple or black. The reaction to Gram's stain depends on the structure of the cell wall of the organism. Most infective organisms, such as staphylococci and streptococci are Gram positive.
References in periodicals archive ?
Linezolid holds particular promise for fighting infections caused by resistant gram positive bacteria, Stevens said.
As part of securing the clearance for gram negative ID, however, the company temporarily withdrew its 510k application for gram positive ID.
Ampicillin/sulbactam, a widely-used drug for treating respiratory, urinary and skin infections, is being added to the company's test kits to aid in determining which antibiotic and what dosage will be effective in treating gram positive bacterial infections.
SIGA's lead product development programs focus on biological warfare defense, mucosal vaccines for strep throat and sexually transmitted diseases, commensal bacteria for the delivery of vaccines and protein therapeutics and novel antibiotics for gram positive and gram negative bacteria.
In September 2002, the Company reported positive safety and efficacy results from the ISV-401 Phase II study, indicating clinical resolution and bacterial eradication for both gram positive and gram negative strains of acute bacterial conjunctivitis.
The patents describe distinct classes of macrolide compounds that possess antibacterial activity toward Gram positive and Gram negative bacteria as well as macrolide resistant Gram positive pathogens.