what does mean microbiology..?

Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution and clinical aspects of microorganisms, including the host response to these agents.

Some types diseases caused by Microorganisms:
Bacteria cause a range of diseases including..
• Strep throat
• Chlamydia
• Typhoid fever
• Tuberculosis
Viruses cause many diseases, including:
• Diarrhea in children, caused by rotavirus .
• Hepatitis C.
• Human papillomavirus .
Parasites are the most common diseases they cause:
• Malaria .
• Giardia intestinal .
• Toxoplasma or Gondic arches.
They are detected by the microscope not culture. 
Finally, fungi:
• Candidiasis caused by Candida fungus.
• Isocytosis caused by the fungus of histoplasma.
Available tests in Ebnruchd Laboratories:
Blood Culture
Breast Discharge Culture
Ear Discharge Culture
Conjunctival swab Culture
Gum Discharge Culture
Nasal Swab Culture
Prostatic secretion Culture
Pus from Wound Culture
Semen Culture
Sputum Culture
Stool Culture
Synovial Fluid Culture
Throat Swab Culture
Urine Culture
Vaginal Swab Culture
CSF Culture
KOH Culture
Skin Swab Culture
Dandruff Culture