A bacterial infection is an illness caused by the presence and growth of bacteria in the body. Bacteria are tiny single-celled organisms that can cause a range of illnesses, from minor skin infections to life-threatening diseases like sepsis and pneumonia.
Bacterial infections can be spread through direct contact, indirect contact, and food and water.
Symptoms of a bacterial infection can vary depending on the type of bacteria causing the infection and the part of the body that is affected.
Bacterial infections are usually treated with antibiotics, which are drugs that kill the bacteria or slow their growth.
Preventing the spread of bacterial infections involves
Introduction Hib (Haemophilus influenzae type b) disease is a contagious disease caused by the bacterium Haemophilus influenzae type b. Gram-negative Haemophilus influenzae bacteria can infect the respiratory tract and spread to other organs. Over 90% of systemic infections are caused by type b (Hib) of the six capsular H. influenzae types. It can affect the … Read more
Introduction Clostridioides difficile infection (C. difficile, C. diff., or CDI), also called Clostridium difficile infection, is an infection caused by a gram-positive, spore-forming bacterium Clostridioides difficile. C. difficile is an anaerobic, toxin-producing bacterium that causes antibiotic-associated colitis. It is a type of bacteria found in the intestines of many people which is a normal part … Read more
Introduction Whooping cough is a potentially fatal bacterial infection of the respiratory tract caused by the gram-negative bacterium, Bordetella pertussis. Whooping cough (pertussis) is a highly contagious infection of the lungs and breathing tubes. In many people, it is marked by a severe hacking cough followed by a high-pitched intake of breath that sounds like … Read more
Introduction Diphtheria is a contagious infection caused by Corynebacterium diphtheriae, a non-encapsulated, non-motile, Gram-positive bacillus bacterium. The bacteria infect and multiply in the airways, releasing a dangerous toxin that can harm major organs. The formation of the pseudo membrane on the site of colonization is a defining feature of the disease. The most common sites … Read more
Introduction Escherichia coli (E. coli) infection is an infection caused by a bacteria called Escherichia coli (abbreviated E. coli). It can result in severe and bloody diarrhea. Escherichia coli (E. coli) E. coli is a gram-negative, rod-shaped bacterium of the Enterobacteriaceae family. It is a facultative anaerobic, non-sporulating coliform bacterium that colonizes the gastrointestinal (GI) … Read more
Introduction Tuberculosis (TB) is a potentially fatal contagious disease primarily affecting lung parenchyma. In most cases, an acid-fast bacillus (AFB), Mycobacterium tuberculosis causes TB. TB, a multi-systemic disease with a wide range of manifestations and presentations, is the leading cause of infectious disease-related mortality worldwide. Approximately 30% of people worldwide are infected with this pathogen, … Read more
Introduction Methicillin-resistant staphylococcus aureus (MRSA) is a group of opportunistic pathogens that has emerged as a widespread cause of both community- and hospital-acquired infections. Types of MRSA Health-care-associated MRSA (HA-MRSA) Community-associated MRSA (CA-MRSA) Incidence Mode of Tansmission of MRSA Causes of MRSA Who are at Risk for MRSA infection? MRSA infection can occur in any … Read more
Introduction Incidence Types of Meningococcal Disease Meningitis Meningococcemia (Meningococcal septicemia) Other types Meningococcal pneumonia Signs and symptoms of Meningococcal Disease Patient with meningococcal meningitis presents with following symptoms Patient with meningococcemia presents with following symptoms Initial symptoms include Later symptoms include Risk factors Anyone can get meningococcal disease but certain people are at risk, including … Read more