1/20/99

Microbiology II

 

Respiratory Tract System

Minor                                     Deadly

Common Cold                               Influenza, Pneumaonia

parainfluenza                                   orthomyxo

adeno                                     hanta virus

corona                                          RSV

Coxsacie                                        (respiratory syncytial

                                                 virus)--young boys

ECHO                                           

reovirus

rhinoviruses

 

-6 attacks/yr each person

-3 days/yr/person in USA in lost work

-22 billion $/year are lost in wages, productivity and health care

-table 21.3 p 601

-no Tx

-are preventable

-adeno and RSV are associated w/croup--acute layngotracheobronchiits

 

Orthomyxo

-influenza

-3 different serotypes:  A,B,C

-A is most frequent

-DNA virus

-changes very rapidly

-new strain every 3 or 4 years

-often restricted to upper respiratory tract

-can spread to blood, deadly pnemonia

-p 598-599

-can lead to immunocompromization

-2nd streptococcus pnemonia

-vaccination

 

Tx:  Amatoadine--prevents entry

      Interferon--soak kleenex

-use of Vit C megadoses

-

 

Hanta Virus p 602 and RSV p 601 on own