CNUR 204 Lecture Notes - Lecture 6: Influenzavirus B, Influenza A Virus Subtype H3N2, Respiratory Therapist
11 Feb 2020
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Document Summary
4000 - 8000 people die yearly from flu related pneumonia: other complications can occur, leading to death (sepsis, respiratory failure) Flu virus changes over time leading it to be spread easier and the need for yearly vaccination: epidemiology is studied out of china, a highly contagious respiratory illness, divided into 2 main types of influenza virus: More prevalent and stronger than influenza b. Has several subtypes - depends on the genes that make up the surface proteins. (ex: h1n1, h3n2) Typed based on surface proteins: hemagglutinin (h) & neuraminidase (n: mild strains affect select tissue (nose, throat, Common cold: highly virulent strains affect deeper tissues (lungs) harder to transmit but more serious consequences, nursing home/care home residents/long term care. 6 - 60 months or 5 years (children) Immunocompromised: anyone with significant health hx. (chronic disease, diabetes, copd, chronic renal failure, especially respiratory related) ***health care workers**: travelers, long term asa therapy, abrupt onset; lasts approx.
