Nice camera work! That shaky camera look gives it some urgency. One scientific issue that critics will inevitably bring up (if you haven't already dealt with it in the script☺) is a virus' inverse relationship between transimissibility and severity. Generally speaking, the more deadly it is, the harder it is to catch it. Otherwise the virus would just run out of hosts and die out, which no species wants to do. That's why ebola has an 80% fatality rate but you have to get up close and personal with someone to actually catch it. Thoughts?