If you're aiming for island nations that usually close their borders (we see you, Greenland and Madagascar), maximize water transmission early.
Upgrading insect or mosquito transmission is the fastest way to jump between hosts in urban environments.
If your parasite has a "lifecycle" mechanic, prioritize eggs that can survive outside the host for long periods. This ensures that even if a host dies, the infection lives on in the environment. Phase 3: The Mutation Shift (Going Loud)
