91 results
COVID-19 Contagiousness Timeline and Testing - Rapid Antigen vs PCR

#COVID19 #Contagiousness #Timeline #Testing #comparison #Antigen #PCR
COVID-19 Contagiousness ... Testing - Rapid Antigen ... PCR #COVID19 #Contagiousness ... Testing #comparison #Antigen
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
Definition: When antigens ... These antigens can ... either be self-antigens ... , or foreign antigens ... Antigen binds receptor
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mediators: lgE - Antigen ... Form: Soluble antigen ... Form: Cell-bound antigen ... complex - Antigen ... Form: Soluble antigen
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
Definition: Small antigen-antibody ... If self-antigens ... If bacterial antigens
Cellular and humoral immune responses of the adaptive immune system. Activated T cells accomplish cellular immune
Exogenous antigen ... only occurs when antigen ... is presented by antigen-presenting ... Endogenous antigens ... millions of different antigens
Innate Immune Cells - Pathophysiology
The innate immune system consists of granulocytes, mast cells, natural killer cells,
are professional antigen-presenting ... to internalize antigens ... and present the antigens
Syphilis Serologic Testing - Treponemal and Non-Treponemal Testing Algorithms
Treponemal Testing:
 • Confirmatory or Screening - Detection
specific treponemal antigens ... cardiolipin-cholesterol-lecithin antigen
Reproductive Number (R0 "R Naught") showing how contagious / transmissible a pathogen is.  The R0
Fatality 0.01 % Pertussis ... #Ebola #MERS #contagiousness
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
lgE - Soluble antigen ... IgM - Cell-bound antigen ... binds to cellular antigen ... IgM - Soluble antigen ... - Antigen-antibody
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
Sensitization -> Antigen ... class II) process antigen ... within 5 minutes of antigen ... by 15 minutes) Antigen ... Exposure -> Antigen