Bacillus anthracis is a gram-positive spore-forming aerobic rod -Spores are the infectious form of the organism…

Clostridium perfringens is a large,spore-forming, gram-positive, nonmotile rod with square ends. -It is commonly found in…

Staph epidermidis thrive as Gram-positive cocci in clusters.  -They are Coagulase-negative. Catalase-positive. -Coagulase negative Staph are…

Staph aureus gastroenteritis is a common cause of food poisoning when food is left at room…

Staphylococcal toxic shock syndrome (TSS) is a toxin-mediated clinical illness characterized by rapid onset of fever,…

SSSS is caused by hematogenous dissemination of exfoliative toxin produced by S.aureus, a toxin-producing staphylococcus -Bullous…

Staphylococci are spherical gram-positive cocci arranged in irregular grapelike clusters  -All staphylococci produce catalase, whereas no…

Pneumococcal meningitis is caused by Streptococcus pneumoniae and is characterized by fever, neck stiffness, bulging fontanelle,…

  –Erysipelas is a sharply demarcated superficial dermal bacterial infection, most often caused by invasion of…

Introduction -Tick-borne encephalitis (TBE) is a flaviviral infection caused by TBE virus with three subtypes: European,…

Scarlet fever is a syndrome characterized by exudative pharyngitis, fever, and scarlatiniform rash.  -It is caused…

Chlamydial infections Introduction  -Chlamydiae are obligate intracellular bacteria, possess both DNA and RNA, and have a…

Introduction Rabies is a rapidly progressive, acute, fulminant, and fatal encephalitis in humans and animals that…

Poliomyelitis is a disease of the anterior horn motor neurons of the spinal cord and brainstem…

Introduction  Rubella is an acute febrile illness caused by Rubella virus, a single-stranded RNA virus of…

Introduction -Mumps is a viral infection which primarily affects salivary glands.  -Mumps virus is a single-stranded…

Introduction  Measles is an acute, highly infectious disease characterized by fever, respiratory symptoms, Koplik spots and…