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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.
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 ]
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 ...
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: Psoriasis, another inflammatory condition that dermatologists see frequently, is known to causes scaly, itchy areas of thickened skin called plaques that can look like rashes.
Cat-scratch disease is due to an infection by B. henselae.It manifests as gradual regional lymph nodes enlargement (axilla, groin, neck) which may last 2–3 months or longer, and a distal scratch and/or red-brown skin papule (not always seen at the time of the disease).
“It typically manifests as redness and bumps at the scratch site, along with the hallmark of swollen lymph nodes near the scratch site.” Other symptoms of CSD include fever, muscle aches ...