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 […]
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 […]
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 shows unique behaviour based on […]
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 […]
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 […]
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 the quality of […]
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 […]
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. […]
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 in USA. General properties: Small group of […]
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 […]
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 Shigella species are classified by four species (serogroups): Serogroup A: Shigella dysenteriae (12 serotypes) […]
Campylobacter usually causes diarrhea (often bloody). It is the most common causes 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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