the risk factors for rheumatic fever include age and infection with
Rheumatic fever Rheumatic fever may occur following an infection of the throat by the bacterium Streptococcus pyogenes.[1] If the infection is untreated rheumatic fever can occur in up to three percent of people.[6] The underlying mechanism is believed to involve the production of antibodies against a person's own tissues.[1] Due to their genetics, some people are more likely to get the disease when exposed to the bacteria than others.[1] Other risk factors include malnutrition and poverty.[1] Diagnosis of RF is often based on the presence of signs and symptoms in combination with evidence of a recent streptococcal infection.[3]
Viscoelasticity When subjected to a step constant stress, viscoelastic materials experience a time-dependent increase in strain. This phenomenon is known as viscoelastic creep.
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Cerebrum With the assistance of the cerebellum, the cerebrum controls all voluntary actions in the body.
Inflammation Redness and heat are due to increased blood flow at body core temperature to the inflamed site; swelling is caused by accumulation of fluid; pain is due to the release of chemicals such as bradykinin and histamine that stimulate nerve endings. Loss of function has multiple causes.[10]
Burn A number of complications may occur, with infections being the most common.[2] In order of frequency, potential complications include: pneumonia, cellulitis, urinary tract infections and respiratory failure.[2] Risk factors for infection include: burns of more than 30% TBSA, full-thickness burns, extremes of age (young or old), or burns involving the legs or perineum.[74] Pneumonia occurs particularly commonly in those with inhalation injuries.[14]