Definition of some terms

Pathogen: Microorganisms that are capable of producing diseases are called pathogen.

Pathogenic- Microorganisms produce diseases are called Pathogenic.

Non-Pathogenic- Microorganisms that are not producing diseases are called Non-Pathogenic.

Antibiotics: Drugs that are produced from microorganisms & used to kill the microorganism are called antibiotics.

Bacteriostatic agent: Drugs that inhibit the bacterial growth are called bacteriostatic agent.

For Example, clarithromycin, Azithromicin.

Bactericidal agent: Drugs that kill the bacteria directly are called bactericidal agent. For example, Amoxicillin, cephradine.

Broad spectrum antibiotic- Antibiotic that are effective against a wide variety of microorganisms are called Broad spectrum antibiotic.

Narrow spectrum antibiotic- Antibiotic that are effective on a single or limited group of microorganisms are called Narrow spectrum antibiotic.

Chemotherapeutic Agents- Chemotheapeutic Agents are chemical substance that are synthesized in the laboratory & used to kill microorganisms.

MIC (Minimum inhibitory concentration):

The minimum concentration of drug that is needed to inhibit the bacterial growth, is called MIC of that drug.

Sterilization:

The process by which microorganisms are removed or killed from any products is called sterilization.

Types of sterilization:

a, Autoclave or moist heat sterilization.

b. Dry heat sterilization.

c, Gaseous sterilization

d, Radiation

Inflammation:

Inflammation is tissue reaction to injury. Inflammation may be result of Blows Foreign bodies, Chemicals, Microoganisms, Surgery, lonized chemotherapy.

Syndrome of inflammation:

1, Redness

2, Temperature

3, Swelling

4, Pain

5, Loss of function.

Infection:

When microorganism invades to our body & produce diseases is called infection. Virulence of infection depends on –

1, Number of microorganism in the body.

2, Route of entry of microorganism in the body.

3, Pathogenicity of microorganism.

4, Power & degree of microorganism to produce diseases.

5, Resistance of the bod (Host).