I saw this earlier.
I have severe Asthma, so I am keeping close tabs on how I am doing. I have had Pneumonia twice (which is what triggered the Asthma) so if I can avoid it again, I will.
Scary stuff though. Not something I would like to have again.....
1993 GMC Sonoma. Vortec 4.3, auto, 4x4. Only had it a couple weeks, don't know much else about it....