![]() ![]() Antimicrobial agents can also be categorized as cidal agents or static agents in terms of whether they kill or inhibit the growth of microorganisms. Such agents can target either Gram-positive bacteria or only Gram-negative bacteria and narrow spectrum drugs only have antimicrobial activity against a limited number of microorganism.īroad spectrum drugs are antimicrobial agents that have activity against a wide variety of pathogenic microorganisms.They are active against both Gram-positive and Gram-negative bacteria. Narrow spectrum drugs are antimicrobial agents that have activity against a few groups of pathogenic microorganisms. Antimicrobial agents are usually divided into two groups based on their spectrum of activity as narrow spectrum drugs and broad spectrum drugs. It is a description of the general activity of an antimicrobial agent against particular micro-organisms. The spectrum of an antimicrobial agent refers to the range of pathogenic microorganisms to which a particular drug is active against. Antimicrobial agents have different spectrum of activity or action and this is usually taken into consideration when selecting drugs for a particular infection or disease. To be more effective, antimicrobial agents also target different metabolic processes in the invading organism such as the inhibition of cell wall development and the synthesis of important macromolecules such as DNA and proteins. Every drug has particular target site on pathogenic microorganisms when administered and the antimicrobial agent is mainly programmed or designed to disrupt and destabilize these target sites especially those that has to do with the growth of the invading pathogen (inclusive of bacteria, viruses, fungi and protozoa). Microorganisms also acquire nutrient molecules from their surrounding environment or growth medium as their cells multiply and divide either in vivo or in vitro. The growth of pathogenic microorganisms is usually accompanied by the synthesis of new molecules including DNA, RNA and proteins. AUTOBIOGRAPHY OF THE FOUNDER OF Microbiolog圜.Antibiotic Resistance / Antimicrobial Resistance (AMR).Antimicrobial Susceptibility Testing (AST) & Antibiogram.Notes on Genetic Engineering & Recombinant DNA Technology.Public Health & Parasitic Diseases (Parasitology).Research & Proposal Tips & Scholarships links.LIST OF SOME BACTERIA OF MEDICAL IMPORTANCE AND THEIR FEATURES. ![]()
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