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CooIgrrIMD at aol.com CooIgrrIMD at aol.com
Sat Sep 26 19:27:10 EST 1998

okay, I just have one thing to say.  If I were in a lab with a virus such as
Ebola, I would be scared to death of killing myself.  Come on, who wouldn't
be? You HAVE to be careful.  I personally don't have a death wish.  But I
understand what you are saying about HIV.  I totally agree.  There are a lot
of viruses that should be BL 4.  It's just that we disregard things to save
$$$.  That's what it all boils down to is politics and $$$.  Okay :) I am
done.  Thanks for listening.  (sorry, I just love to send email =)
To:               virology at net.bio.net
From:             bhjelle at unm.edu
Subject:          Re:  Re: Ebola virus outbreak in Africa
Date sent:        17 May 1995 17:36:31 -0600

In article ,
  BL ratings do not reflect how dangerous a disease causing organism is
>to humans, but how careful people in the labs think they should be with the
>organisms. If it scares the crap outta them, its BL4. If not, it's not.
>     I think that Ebola could be safely handled with P3 containment or
>even carefully followed P2 conditions. BL4 isn't perfect, just read about
>hole in glove incidents. 
The BL ratings are more than how "scary" viruses are, or their
crude mortality rates. They are based upon their infectiousness
and route of infection (aerosol is worse than percutaneous),
their case-fatality, availability of vaccine, and past experience
with laboratory infections and consequences thereof.
Thus HIV is BL2-BL3 but Machupo is BL4, even though HIV has
a higher mortality. 

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