Haemophilus influenzae: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Haemophilus influenzae is a Gram-negative bacterium that was originally believed to be the causative agent of influenza (the flu). However, it was later discovered that H. influenzae is not related to the viral infection that causes influenza. Instead, this bacterium is known for causing …

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Extended Spectrum Beta-Lactamase (ESBL): Introduction, List of Bacteria, Pathogenicity, Symptoms, Lab Diagnosis, Treatment, Prevention, and Keynotes

Extended spectrum beta lactamase (ESBL) detection using Double-Disc Synergy Test (DDST)

Introduction ESBL stands for Extended-Spectrum Beta-Lactamase. It refers to a group of enzymes produced by certain types of bacteria that can break down and inactivate a broad range of antibiotics called beta-lactams. Beta-lactams include commonly used antibiotics like penicillins, cephalosporins, and carbapenems. ESBL-producing bacteria are …

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Methicillin-resistant Staphylococcus aureus (MRSA): Introduction, Morphology, Pathogenicity, Symptoms, Lab Diagnosis, Treatment, Prevention, and Keynotes

Nasal Methicillin-resistant Staphylococcus aureus (MRSA) Carriage expressing Cefoxitin and Oxacillin Resistance on Muller-Hinton agar (MHA)

Introduction Methicillin-resistant Staphylococcus aureus, commonly known as MRSA, is a type of bacteria that has developed resistance to multiple antibiotics, including methicillin and other beta-lactam antibiotics like penicillin and cephalosporins. Staphylococcus aureus is a bacterium that can naturally colonize the skin and mucous membranes of …

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Listeria monocytogenes: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Listeria monocytogenes colony morphology on blood agar-Upper side

Introduction Listeria monocytogenes is a gram-positive, rod-shaped bacterium that is widely distributed in nature and can cause a serious foodborne infection known as listeriosis. It is one of the few bacterial species capable of growing at refrigeration temperatures, making it a significant concern for food …

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Immunochromatography: Introduction, Principle, Procedure, Result-Interpretation, Uses and Keynotes

Rapid tests based on Immunochromatography- Hepatitis A virus, Hepatitis E virus, Syphilis rapid test, ToRCH Rapid test and more

Introduction Immunochromatography, also known as lateral flow immunoassay or rapid test, is a widely used diagnostic technique that allows for the rapid and qualitative detection of specific target substances, such as antigens or antibodies, in various biological samples. It is a simple, cost-effective, and user-friendly …

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Salmonella Typhi IgM and IgG Test: Introduction, Test Report, Test Method, Clinical Significance, Keynotes

Salmonella rapid test

Introduction The Salmonella Typhi IgM and IgG test is a serological test used to detect antibodies produced by the immune system in response to Salmonella Typhi, the bacterium responsible for causing typhoid fever. This test helps in diagnosing and confirming cases of typhoid fever, a …

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Blood Culture: Introduction,Common Blood Pathogens, Test Report, Clinical Singificance,and Keynotes

BD BACTEC blood culture vial

Introduction Blood culture is a diagnostic test performed to detect the presence of microorganisms, such as bacteria and fungi, in the bloodstream. It is a critical tool used by healthcare providers to identify and treat bloodstream infections or septicemia, which can be life-threatening if not …

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E. cloacae: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

E. cloacae mucoid growth on CLED agar of Urine Culture

Introduction Enterobacter cloacae is a Gram-negative bacterium belonging to the Enterobacteriaceae family. It is a non-motile, facultative anaerobic, rod-shaped bacterium with a characteristic ability to ferment lactose. The name “cloacae” is derived from the Latin word “cloaca,” which means sewer or drain, indicating the bacterium’s …

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