Septicemic plague is one of the three forms of plague, and is caused by Yersinia pestis, a gram-negative species of bacterium. Septicemic plague is a systemic disease involving infection of the blood, and is most commonly spread by bites from infected fleas. Septicemic plague can cause disseminated intravascular coagulation, and is almost always fatal when untreated. The other varieties of the plague are bubonic plague and pneumonic plague. Signs and symptoms
The usual symptoms are:
Abdominal pain
Bleeding under skin due to blood clotting problems
Bleeding from mouth, nose or rectum
Gastrointestinal symptoms, including nausea, vomiting, which can be with blood, and diarrhea
Fever
Chills
Low blood pressure
Organ failure
Shock
Death of tissue (gangrene) in extremities, mostly fingers, nose, and toes
Difficulty breathingThese symptoms are common to many human illnesses, and are not considered, in and of themselves, to signify infection with any form of plague.It is important to note that septicemic plague may be asymptomatic, and may cause death absent of any symptoms. Cause
Transmission
Human Yersinia infections most commonly result from the bite of an infected flea or occasionally an infected mammal, but like most bacterial systemic diseases, the disease may be transmitted through an opening in the skin or by inhaling infectious droplets of moisture from sneezes or coughs. In both cases septicemic plague need not be the result, and in particular, not the initial result, but it occasionally happens that bubonic plague for example leads to infection of the blood, and septicemic plague results.
Guttate psoriasis (also known as eruptive psoriasis) is a type of psoriasis that presents as small (0.5–1.5 cm in diameter) lesions over the upper trunk and proximal extremities; it is found frequently in young adults. : 410 : 194 The term "guttate" is used to describe the drop-like appearance of skin lesions. Guttate psoriasis is classically triggered by a bacterial infection, usually an upper respiratory tract infection. : 726

Signs and symptoms
Typically, guttate psoriasis erupts after a throat infection, or strep throat. Initially, when the throat infection has cleared up, the person can feel fine for several weeks before noticing the appearance of red spots. They appear small at first, like a dry red spot which is slightly itchy. When scratched or picked, the top layer of dry skin is removed, leaving dry, red skin beneath with white, dry areas marking where flakes of dry skin stop and start. In the weeks that follow, the spots can grow to as much as an inch in diameter. Some of the larger ones may form a pale area in the center which is slightly yellow. Guttate psoriasis can occur on any part of the body, particularly the legs, arms, torso, eyelids, back, bottom, bikini line, and neck. The number of lesions can range from 5 to over 100. Generally the parts of the body most affected are seen on the arms, legs, back and torso. Causes
Genetic and environmental factors can influence the predilection for guttate psoriasis. Human leukocyte antigens, especially those in the HLA-C group are associated with the skin disorder.