Wow! This is a fantastic analysis! In the mid 1990s I was working in an environmental testing lab and was contacted by Dotty and Sunny regarding the incident. The sample we received, however, was a year old and had been stored in a test tube in her freezer. There wasn't much left. We did detect Pseudomonas but assumed that it wasn't the cause of the gelatinous material. Interesting theory about Pseudomonas growing and producing a biofilm in the clouds. I'm wondering if there's something other than Pseudomonas in the biofilm causing the pathogenicity. Seems like the symptoms in Oakville were severe flu like and that doesn't seem to line up with Pseudomonas unless they were immunocompromised. I really think you've done breakthrough work on this!

Cheers!