28 Days Later: The Church Scene
The church scene were Jim first encounter infected is really haunting, the gormless face on them when they look up. But their looks like lots of dead bodies on the floor in the church, were these infected that had already starved/dehydrated and died? And considering that Jim hadn't encountered any infected up to that point, were infected already dying?
In 28 years we see infected by a stream, almost using it as a home base as they're just lingering there, maybe for continual access to water and hunting when needed? They're not dead after all so still have basic needs, and having an alpha to guide them on meeting those needs also helped?
Sorry if this is common knowledge, it only just occurred to me.