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Bartonella henselae is a member of the genus Bartonella, one of the most common types of bacteria in the world. [specify] It is a facultative intracellular microbe that targets red blood cells. In the United States, about 20,000 cases are diagnosed each year, [2] most under 15 years old. Most often, it is transmitted by scratches or bites from ...
On microscopic examination, the chronic phase and its rash are produced by angioblastic hyperplasia, or the increased rates and volume of cell growth in the tissues that form blood vessels. This results in a loss of contact between cells and a loss of normal functioning. [2] [7] The chronic phase is the more common phase.
Patients can develop two clinical phases: an acute septic phase and a chronic eruptive phase associated with skin lesions. [3] In the acute phase (also known as Oroya fever or fiebre de la Oroya), B. bacilliformis infection is a sudden, potentially life-threatening infection associated with high fever and decreased levels of circulating red blood cells (i.e., hemolytic anemia) and transient ...
Cellulitis looks like a rash, but is actually an infection of the middle layer of skin, says Dr. Yadav. It causes the skin to become diffusely red, swollen, tender, and hot to the touch, and may ...
What it looks like: The most recognizable reaction on this list is the bullseye rash—a large, red, target-like rash that signals the early stages of Lyme disease from the bite of an infected ...
Cat scratch disease (CSD), which is also sometimes called cat scratch fever, occurs when someone comes into contact with Bartonella henselae bacteria, according to Verywell Health.
Bartonella is a genus of Gram-negative bacteria. It is the only genus in the family Bartonellaceae. It is the only genus in the family Bartonellaceae. [ 2 ] [ 3 ] Facultative intracellular parasites , Bartonella species can infect healthy people, but are considered especially important as opportunistic pathogens . [ 4 ]
Bartonella bacilliformis is the etiologic agent of Carrion's disease or Oroya fever (acute phase of infection), and verruga peruana or Peruvian wart (chronic phase of infection). The acute phase of the disease is a life-threatening disease characterized by massive invasion of Bartonella to human red blood cells and consequently acute hemolysis ...