Their team had been strong enough so, except from the very beginning, they didn't have any of their members turning into zombies.
Even in the people that they had encountered before, they only saw a few turning into zombies because they had been injured by things that were contaminated by the zombie virus or when they were injured or bitten by zombies.
And even in the case of Camille, it was still only one of their members and Camille also managed to pull through in the end and survive.
But this time, while they were fighting, a lot of people around them had been directly eaten or left half-dead by the zombie birds, or they were injured and turned into zombies themselves.
Even though they had been doing their best to kill the zombie birds and helping those that were around them, they had still seen a lot of people turning into zombies.
