Surprisingly article in FT indicate that vaccine candidates were made in record time, about a month or so ( In February 2020) . Now is process of testing and approving which take less or more time.
In US it may takes a longer time because people will fill litigations and suits if procedures wasn't followed.
China may be more practical.
No surprise our Queensland professor is main contributor to newest vaccine preparation, so we should have full confidence.
avs.org.au/virology-in-australasia/queensland/university-of-queensland/
Once we have viruses jumping on us from bats and monkeys , hopefully not much we could expect from our Koalas!! But it could happen that jumping Koala is not a joke anymore!!
en.wikipedia.org/wiki/Koala_retrovirusOur brave Koala beats all other viruses hands down with 100% accuracy

Weaponizing now Koalas could be main goal for military VirLabs. No surprise , because unlike EuroAfroAsian continent this part of the world was separated for thousand of years and main population didn't have a chance to develop any resistance.
What about kanguru? We don't use to eat much koalas but with kangguru is different story........
...so better don't stock guru's as a food bank...
Kanguru Antivirus may be our best weapon against Corona !!!