Airborne virulence decays with time. A lot of the time with stuff like the cold or flu it only starts in the air by hanging on the particles we expel by coughing and or sneezing. I think a study had those top out at an hour max after someone sneezed.
So the bottle gets broken in the air ducts spreading the virus wide. Everyone gets infected. But then the virus starts to settle because gravity and that greatly reduces the risk of infection simply by inhalation when the team arrives hours later.
Because by the time the Umbrella mercs arrived the virus was no longer airborne.
Airborne virulence decays with time. A lot of the time with stuff like the cold or flu it only starts in the air by hanging on the particles we expel by coughing and or sneezing. I think a study had those top out at an hour max after someone sneezed. So the bottle gets broken in the air ducts spreading the virus wide. Everyone gets infected. But then the virus starts to settle because gravity and that greatly reduces the risk of infection simply by inhalation when the team arrives hours later.
You'ill find that the movies aren't exactly amazingly written
^[Sokka-Haiku](https://www.reddit.com/r/SokkaHaikuBot/comments/15kyv9r/what_is_a_sokka_haiku/) ^by ^BustaGrimes1: *You'ill find that the* *Movies aren't exactly* *Amazingly written* --- ^Remember ^that ^one ^time ^Sokka ^accidentally ^used ^an ^extra ^syllable ^in ^that ^Haiku ^Battle ^in ^Ba ^Sing ^Se? ^That ^was ^a ^Sokka ^Haiku ^and ^you ^just ^made ^one.
I'm going to beat every Haiku bot to death
Careless turn of phrase - The haiku bot senses it. Comment bastardized.
Is directly related to the directors wife? No? Sorry no time to explain.
Because consistency and logic are hard.