Respiratory Tract Infections-Introduction, Types, Signs and Symptoms, Common Pathogens, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Respiratory Tract Infections-Introduction, Types, Signs and Symptoms, Common Pathogens, Laboratory Diagnosis, Treatment, Prevention and Control, and Keynotes

Introduction Respiratory tract infections (RTIs) are a group of illnesses that affect the respiratory system, which includes the organs and structures involved in breathing. These infections can range from mild to severe and may involve various parts of the respiratory tract, including the upper and …

Read more

Hepatitis B surface antigen (HBsAg) Test-Introduction, Test Result, Test Method, Clinical Significance, and Keynotes

Hepatitis B surface antigen (HBsAg) Test-Introduction, Test Result, Unit, Normal Range, Test Method, Clinical Significance, and Keynotes

Introduction The Hepatitis B Surface Antigen (HBsAg) test is a crucial diagnostic tool used in the field of clinical laboratory medicine to detect the presence of the Hepatitis B virus (HBV) in an individual’s bloodstream. Hepatitis B is a viral infection that primarily affects the …

Read more

Streptococcus pneumoniae: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Optochin sensitive Streptococcus pneumoniae

Introduction Streptococcus pneumoniae, commonly known as pneumococcus, is a bacterium that can cause a wide range of infections in humans. It is one of the most significant pathogens responsible for various diseases, particularly pneumonia, meningitis, and otitis media (middle ear infections). Characteristics: Transmission: Diseases caused …

Read more

Varicella-Zoster Antibody, IgG Assay:Introduction, Test Result, Unit, Normal Range, Test Method, Clinical Significance, and Keynotes

Varicella-Zoster Antibody, IgG Assay:Introduction, Test Result, Unit, Normal Range, Test Method, Clinical Significance, and Keynotes

Introduction Varicella-zoster antibody, IgG assay, is a medical test used to measure the levels of varicella-zoster virus (VZV) specific immunoglobulin G (IgG) antibodies in the blood. VZV is the virus responsible for causing chickenpox (varicella) and can also re-emerge later in life as shingles (herpes …

Read more

Corynebacterium diphtheriae: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Corynebacterium diphtheriae colony morpholoy on 5% sheep blood agar after 48 hours of incubation

Introduction Corynebacterium diphtheriae is a gram-positive, rod-shaped bacterium that causes diphtheria, a highly contagious and potentially life-threatening respiratory infection. This bacterium was first identified and described by the German physician Edwin Klebs in 1883, and later confirmed by Friedrich Loeffler and Emil von Behring. The …

Read more