dry, desert joke
in 100° heat, no choice
sounds like it might not be a lab related exposure
"Although our phylogenetic analysis suggests that bats might be the original host of this virus, an animal sold at the seafood market in Wuhan might represent an intermediate host facilitating the emergence of the virus in humans. "
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30251-8/fulltext
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30251-8/fulltext
"Although our phylogenetic analysis suggests that bats might be the original host of this virus, an animal sold at the seafood market in Wuhan might represent an intermediate host facilitating the emergence of the virus in humans."
Step 1 engineer bat viri in lab
Step 2 release infected bat(s) @ market
Step 3 humans in proximity are patient zero
???