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Home2013May

Month: May 2013

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MCQ Microbiology

MCQs on History of Microbiology (Part One)

May 31, 2013 Acharya Tankeshwar 2

MCQ History of Microbiology One: The epidemic that infected Europe, Middle East and North Africa and killed tens of millions of people was known as the Black Death. The disease was caused by a)      Anthrax […]

Microbiology for Beginners

Why Viral Nucleic acid (Genome) is unique?

May 30, 2013 Acharya Tankeshwar 0

During high school you might have learned two very basic rules about nucleic acid: DNA and RNA. Deoxyribonucleic acid (DNA) is a double stranded molecule, i.e. it consists of two strand of DNA bound together and […]

Mycology

Dimorphic fungi and their properties

May 29, 2013 Acharya Tankeshwar 2

Fungi can be broadly classified into two groups;  yeasts and molds. Yeasts are single-celled organisms that reproduce by budding but molds grow as filaments like structure. Many medically important fungi show unique behaviour based on the […]

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Anaerobic Bacteriology

Clinical Specimens suitable for anaerobic culture

May 26, 2013 Acharya Tankeshwar 0

Specimens for anaerobic culture should be properly collected and transported.  Indigenous anaerobes are often present in large numbers as normal flora on mucosal surfaces (e.g. mouth). So the sample from sites known to have anaerobes […]

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Anaerobic Bacteriology

Importance of Gram Stain in Anaerobic Bacteriology

May 26, 2013 Acharya Tankeshwar 4

Gram stain is an important rapid tool for anaerobic bacteriology. It reveals the types and relative numbers of microorganisms and host cells present. Gram stain also serves as a quality control measure for the adequacy […]

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Anaerobic Bacteriology

Anaerobic culture media for anaerobic bacteriology

May 24, 2013 Acharya Tankeshwar 11

Media used in the anaerobic bacteriology can be freshly prepared or purchased from commercial suppliers. Media for anaerobic culture prepared in the laboratory should be used within 2 weeks of preparation as long storage degrades […]

Medals and Awards in Microbiology

Nobel Prizes Awarded for Research in Microbiology and Immunology

May 20, 2013 Acharya Tankeshwar 4

It is of great interest to all Microbiology/Biomedical students to know about Microbiologist and their contribution for which they received Nobel prize. The Nobel Prize is the highest honour that a scientist can receive. If […]

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Bacteriology

Extracellular and Intracellular bacteria and their preferred growth phase within the host

May 20, 2013 Acharya Tankeshwar 12

Pathogenic bacteria can be grouped into three categories on the basis of their invasive properties for eukaryotic cells. Extracellular bacteria Facultative intracellular bacteria Obligate intracellular bacteria Extracellular bacteria: Extracellular bacterial pathogens do not invade cells. […]

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Laboratory Diagnosis of Bacterial Disease

Chlamydia trachomatis: properties, disease and laboratory diagnosis

May 20, 2013 Acharya Tankeshwar 2

Chlamydia trachomatis, an obligate intracellular bacteria, causes significant infection and disease worldwide. It is a most common sexually transmitted bacterial pathogen and major cause of pelvic inflammatory disease (PID) in USA. General properties: Small group […]

Funny Microbiology

Microbiologists Just Want to Have Fun

May 19, 2013 Acharya Tankeshwar 3

Review of: A Selected Set of Non-Technical Online Microbial Resources. by: Heather M. Seitz As Microbiology professors, we all know how fun microbiology can be! However, many people, including students, do not always see the […]

Shigella
Bacteriology

Shigella: Disease, properties, pathogenesis and laboratory diagnosis

May 18, 2013 Acharya Tankeshwar 2

Shigellae are Gram-negative, non-motile, non-spore forming, rod-shaped highly infectious bacteria of the Enterobacteriaceae family. Shigella species include; Shigella sonnei, S. boydii, S. flexneri, and S. dysenteriae. Classification There are 4 major subgroups and 43 recognized serotypes of […]

Bacteriology

Campylobacter Jejuni: Disease, Properties and Laboratory diagnosis

May 18, 2013 Acharya Tankeshwar 1

Campylobacter usually causes diarrhea (often bloody). It is the most common cause of gastroenteritis worldwide, enterocolitis, especially in children. It causes systemic infection (rarely) in children and debilitated adults. Systemic infections (bacteremia), mostly by Campylobacter intestinalis. […]

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