A hyaluronic acid capsule can also increase the virulent effects of this bacteria by producing a mucoid appearing capsule (Carrillo-Marquez, 2016). Adhesins allows for GAS to attach and colonize the pharynx. Antigens, exotoxins, adhesins, and capsule all work together to help this Streptococcus bacterial increase virulence and proliferate.
ADAPTIVE RESPONSES3Scenario TwoContact dermatitis causes by hypersensitivity could be the issue faced in scenario two. This protein-allergen complex involves Langerhans cells in the epidermis that communicate withthe immune system and environment (Huether & McCance, 2014). When Langerhans cells engulf the environmental antigen such as chemical cleaners it delivers an antigen fragment along with a MHC-II molecule to the lymph node making MHC-II complex and initiating T cells making a cell mediated reaction (Huether & McCance, 2014).This could be a cell-mediated reaction effecting both lymphocytes and macrophages caused from contact sensitivity to cleaning chemical or glove use (Huether & McCance, 2017). Type IV cell-mediated hypersensitivity reaction involve cytotoxic T lymphocytes or lymphokine-producing cells (Th1 and Th17) that target and destroy cells (Huether & McCance, 2017). The lymphokine-producing cells activate cytokines and macrophages that directly destroy tissue or by lysosomal enzymes by the macrophages (Huether & McCance, 2017). Scenario Three Martha’s symptoms could be triggered by an increase in stress by caregiver demand for her mother. The stress response can be initiated by psychologic or physical stressors effecting the autonomic and hypothalamic-pituitary-adrenal (HPA) system (Huether & McCance,2017). The stress response in a short-term “fight or flight” is a normal response and meant to
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- Fall '17
- keisha lovence