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Antibiotic

Definition

noun, plural: antibiotics

Antimicrobial agent made from microorganisms, and can kill and inhibit the growth of microorganisms, especially those that are infectious or disease-causing


adjective

Of, relating to, or pertaining to antibiotic


Supplement

Antibiotics are chemotherapeutic substances that are capable of killing and inhibiting growth of specific microorganisms, such as infectious bacteria and fungi.

There are different kinds of antibioics, and are classified based on their mechanism of action (i.e. if on the cell membrane, cell wall, or metabolism), chemical structure, spectrum of activity (i.e. if targeting gram-negative or gram-positive bacteria), or by mode of administration (e.g. oral, intravenous, or topical).

Antibiotic treatments should be done in accord to the recommended dosage and duration in order to prevent antibiotic resistance. The latter is a condition in which the antibiotic has become less effective when the target bacteria acquire resistance to antibiotic effects.

Antibiotics are derived from microorganisms, such as fungi and bacteria. Therefore, the antimicrobial gastric juice is not considered an antibiotic.


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Re: antibiotic overuse ???

So, you suggest antibiotics should be used more aggressively and precisely to destroy resistant bacterial species before they take hold? I agree with more precise use of antibiotics based on microbiological tests. If you leave a mild ...

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by boron
Thu Oct 02, 2014 7:24 am
 
Forum: Human Biology
Topic: antibiotic overuse ???
Replies: 3
Views: 278

Re: antibiotic overuse ???

... ? Is more of a statement... To ensure that resistant bacteria is not allowed to grow inside a human body requires the administration of the right antibiotic, given early, and for a long enough period of time (hence my suggestion of monitoring of every antibiotic use). NOT (as suggested and what ...

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by androspandros
Mon Sep 29, 2014 3:31 pm
 
Forum: Human Biology
Topic: antibiotic overuse ???
Replies: 3
Views: 278

antibiotic overuse ???

... form of attack from the nody. b) at times... the body's defences alone are not sufficient and the bateria will grow in number. c) by adding an antibiotic, the bacteria is defeated and we recover. Excellent! success for the antibiotics. BUT and this is my guess! d) there will always be amongst ...

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by androspandros
Thu Sep 18, 2014 8:43 am
 
Forum: Human Biology
Topic: antibiotic overuse ???
Replies: 3
Views: 278

staphylococcus aureus and biofilm formation

Bacteria resistant to antibiotic means it produce some enzyme ( eg. Beta lactamase) or other mechanism against antibiotic. I think normal microflora of gut form biofilm. Biofilm formation isn't a sole factor to confer antibiotic resistance.

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by josem
Fri Aug 01, 2014 7:53 pm
 
Forum: Microbiology
Topic: staphylococcus aureus and biofilm formation
Replies: 3
Views: 3278

Re:

... "SEMI SOLID (Sloppy) Agar – Anaerobic" - This media is usually used to test motility. "ANTIBIOTIC SENSITIVITY- Resistant." - To what??? "HUGH AND LEIFSON’S O/F TEST: Negative" - It cannot be negative. It's either Oxidative, ...

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by microbiologyhelp
Sun Dec 01, 2013 11:36 am
 
Forum: Microbiology
Topic: URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!
Replies: 7
Views: 6185
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