Viral Infections of the LRS

  1. Causative agent of Influenza
    Influenza virus
  2. Signs and symptoms of influenza
    Fever; muscle aches; lack of energy; headache; sore throat; nasal congestion; cough
  3. Pathogenesis of Influenza
    lower respiratory epithelium destroyed and virus released to infect other cells; possible bacterial secondary infection from damaged mucocilliary escalatorĀ  (usu. bacterial bronchitis)
  4. Epidemiology of Influenza
    droplet transfer (coughing); antigenic drift and antigenic shift prevent immunity
  5. Treatment of Influenza
    specific antibioticsĀ  are sometimes effective for preventing type A, but not B disease; neuramidase inhibitors are effective against both; meds are only effective if there is early treatment. Vaccines are 80-90% effective.
  6. Antigenic drift
    slight changes in a viral surface antigen that render antibodies made against a previous version ineffective
  7. Antigenic shift
    uncommon, major changes in a viral surface antigen that render antibodies made against a previous version ineffective
  8. Swine flu
    H1N1. Assortment of a bird, pig and human segments
Author
xBEMx
ID
332378
Card Set
Viral Infections of the LRS
Description
LRS
Updated