I Forced 2 Viruses To Fight Over 30,000 People in World Box

It's zombies vs the plague and they've got 30,000 people to work with. It's a simple race to see which disease will take more lives. Each gets to start on their own side of the world and has no shortage of people to work with. With that many people on the map viruses can spread very quickly, there's basically no empty space. The plague starts slowly but spreads efficiently since it's hard to detect. The zombies are attacked right away, but that's exactly how they spread. It's always amusing playing god.

World Box - https://www.superworldbox.com/

PC Specs - Intel - Core i9-9980XE 3 GHz 18-Core Processor
2xNVIDIA - GeForce RTX 2080 Ti 11 GB Founders Edition Video Card (2-Way SLI)
Asus - ROG RAMPAGE VI EXTREME EATX LGA2066 Motherboard
Samsung - 970 Pro 1 TB M.2-2280 Solid State Drive
Corsair - Vengeance LPX 32 GB (2 x 16 GB) DDR4-4000 Memory