Re: Blood Type Ratios?

On or about 27 Nov 2003 we observed [EMAIL PROTECTED] (Daryle
Walker) intimating in news:[EMAIL PROTECTED]: 

> SPOILERS for the _Star Trek Enterprise_ episode "Carpenter Street"
> 
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> The aliens try to deploy the biological weapons when they have
> only six of the eight standard blood types programmed.  It
> wouldn't kill everyone, but T'Pol says that 3/4 of the population
> dying is still bad. 
> 
> I don't have the exact numbers, but I don't think the distribution
> of blood types is even.  (Quick recap: there are three standard
> blood type factors, binary on their absence or presence.  This
> leads to eight combinations.)
> 
> The aliens had missed: B- AB+
> (So they got: O+ O- A+ A- B+ AB-)
> (They also missed the few people with non-standard types.)
> 
> Does anyone know the exact distrubtions of blood types, so we can
> estimate the percentage killed.  (Only the B-, AB+, and
> non-standard people would be spared.)
> 

I think the whole idea of basing a bio-weapon on blood type is making 
it far more complicated than it has to be.  Surely a 100% fatal 
pathogen can be developed based on something more common species-wide 
than blood-type.