DrChika

Chika Ejikeugwu (PhD, 2017, UNIZIK, Nigeria) is a Fellow of the Alexander von Humboldt (AvH) Stiftung in Germany. Dr. Chika Ejikeugwu is currently a Research Fellow at the Helmholtz-Zentrum für Umweltforschung GmbH-UFZ, Leipzig, Germany, where he is working on "the soilRESIST project to investigate the effects of antibiotic mixtures on soil microbiomes." He founded Africa's Number 1 Microbiology website, www.MicrobiologyClass.net. Dr. Chika Ejikeugwu was a DAAD postdoctoral fellow at Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin, Germany (2021) and a MIF Postdoctoral Fellow at Kyoto University, Kyoto, Japan (2018). In 2021, he was awarded the Young Investigator Award on Antimicrobial Resistance (AMR) by Institute Mérieux in France. Dr. Chika Ejikeugwu is a member of the Global Young Academy in Germany, and a member of other professional (microbiology) societies including Applied Microbiology International (AMI), European Society of Clinical Microbiology and Infectious Diseases (ESCMID), Nigerian Society for Microbiology (NSM) and American Society for Microbiology (ASM). He holds a doctorate degree in Pharmaceutical Microbiology and Biotechnology. Dr. Chika Ejikeugwu is a Senior Lecturer & Researcher at Enugu State University of Science & Technology (ESUT), Nigeria where he mentors undergraduate and postgraduate students on microbiology & other aspects of life. He has a flair for teaching, research and community service.

MEASUREMENT OF ANTIMICROBIAL EFFICACY/ACTIVITY

The determination of the antimicrobial susceptibility of a given pathogen to a particular antimicrobial agent can be performed or undertaken by one of two basic methods, viz: Agar Disk Diffusion Method Agar disk diffusion technique of antimicrobial susceptibility testing provides a basis for the classification of a pathogenic strain as susceptible, intermediate or resistant to […]

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Antimicrobial Susceptibility Testing (AST) & Antibiogram, Pharmaceutical Microbiology, , ,

MICROBIOLOGY OF THE SOIL

Soil is simply defined as the mixture of minerals, organic matter, gases, liquids, and the countless macroscopic and microscopic organisms that together support life on the earth’s crust (lithosphere). It is the most abundant ecosystem on earth. Soil develops as a result of the weathering of geological rock formations in the earth’s crust.  Soil usually

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Environmental & Soil Microbiology, ,

MEMBRANE FILTRATION TECHNIQUE

Filtration is simply defined as the separation of particles from fluid or liquids by the use of a porous material that allows the passage of the fluid but stops or holdback unwanted particles from passing through it. Filtration can be used to separate microorganisms from a liquid or gas in which they are dispersed. It

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Environmental & Soil Microbiology, Microbe Lab, Techniques in Microbiology Lab, , ,

CULTURE OF CEREBROSPINAL FLUID (CSF)

AIM: To isolate organism from cerebrospinal fluid (CSF) specimen as an aid in the diagnosis of cerebrospinal meningitis and other microbial infection of the CSF. MATERIAL/APPARATUS: Cerebrospinal fluid (CSF) specimen, blood agar (BA), chocolate agar (CA), Bunsen burner, inoculating loop, incubator, anaerobic jar, MacConkey agar (MCA). NOTE: The CSF specimen should be collected only by

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Microbe Lab, Techniques in Microbiology Lab, ,

MICROSCOPY OF SPUTUM SPECIMEN

AIM: To detect the presence of pus cells and predominant bacteria in sputum specimens as an aid in the diagnosis of lower respiratory tract infections like pneumonia or bronchopneumonia. MATERIAL/APPARATUS: Sputum specimen, glass slide, microscope, immersion oil, inoculating loop, Bunsen burner, piece of stick. METHOD/PROCEDURE FOR SPUTUM SAMPLE MICROSCOPY REPORTING OF THE RESULT: Describe and

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Techniques in Microbiology Lab, Microbe Lab, , ,

LICHENS AND THEIR BIOLOGICAL SIGNIFICANCE

Lichen is simply a symbiotic association of slow-growing microorganisms that is composed mainly of a fungus and cyanobacteria or green algae. They are a composition of twin or double organisms, and are very rich in chemical compounds as expressed by the varying colours that they produce on the surfaces where they form. Lichens grow on

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Mycology, ,

TREATMENT & PREVENTION OF FUNGAL INFECTIONS

Fungal infection is treated using antifungal drugs. Some of the drugs used for the treatment of mycoses in humans include: PREVENTION AND CONTROL OF FUNGAL INFECTIONS The prevention and control of mycoses is largely dependent on avoiding exposure to fungal spores or conidia and limiting contact with natural reservoirs of most fungal organisms. An intact

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Mycology, , , ,

BACTERIAL FLAGELLATION

Flagella (singular: flagellum) are the organelles of locomotion or movement in prokaryotic cells. Microbial motility is a key feature for motile bacteria, and this characteristic allows organisms to move from one location to another in search of food or away from potential attacks in their normal habitat. Flagella are thread-like slender-looking and rigid structures that

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Microbial Physiology & Metabolism,