Loved the event, with a few issues.
I loved that there was no hint and it just happened. It really fit well with the whole idea of it being an outbreak. I really liked the fact that it was such a surprise.
I hated the companion boxes. Next time if you want an RNG based reward system, add a cheaper version and a more expensive "get what you want" version. So for example:
Have the existing companion box, 20 tokens.
Have the individual tokens, but they should be 80.
That way you can play luck or get exactly what you want.
The vaccine not lasting through death and its cost were very prohibitive. Also don't allow debuffs like that into Ranked Warzones when they come out. I don't want a temporary event ruining the balance of pvp. Thanks