Knox Infection

Lore & Background

The Knox Infection is central to the 'Knox Event' conveyed through in-game radio broadcasts and TV channels. The game begins on July 9, 1993, approximately three days after the US military establishes a blockade surrounding the infected areas of Muldraugh, Riverside, West Point, and Rosewood, dubbed the Knox Exclusion Zone. US Army General John McGrew issues a statement informing the public to remain calm, assuring that no fatalities have been reported.

On July 11, the World Health Organization grounds all non-essential international flights to prevent global spread. Riots erupt in various American cities, and curfews are implemented in New York City and Miami following deaths and injuries. On July 13, media interviews with survivors released from military captivity reveal the infected 'hunt' the living, spreading infection through bites. McGrew issues a statement on July 14 confirming the infection spreads through direct fluid contact, scratches, and other 'un-American' acts of violence.

By July 15, the first reports of individuals falling ill without being bitten are confirmed. On July 16, the US military demolishes bridges over the Ohio River, killing hundreds of escaping civilians. On July 17, the virus is confirmed in Cincinnati, Mogadishu, Seoul, Okinawa, and multiple cities in England. In a final broadcast, McGrew addresses immune individuals, confirming they remain susceptible to infection through fluid contact, specifically citing bites. Most radio and television stations cease operations by July 18, marking the end of the world.

Reader's Guide

Understanding the Knox Infection is critical for survival. The infection spreads through direct fluid contact — bites and scratches from infected individuals are the primary transmission vectors. The player character is immune to airborne transmission, but this immunity does not protect against bites. Once infected, symptoms progress rapidly: high fever, anxiety, nausea, and eventual death.

There is no cure, so prevention is the only option. Avoid combat with zombies whenever possible, and always wear protective clothing. The game's sandbox mode allows players to customize virus transmissibility, including the option for 'sprinter' zombies. The infection's timeline is conveyed through in-game radio and TV broadcasts, which provide crucial context for the player's situation.

Listening to these broadcasts can give players a sense of the broader collapse, but the key takeaway is simple: avoid bites at all costs. The Knox Infection is invariably fatal, and the only way to survive is to never let it take hold.

Did You Know?

• The infection becomes airborne by July 15, 1993, with the first reports of individuals falling ill without being bitten confirmed by the media.
• General John McGrew's final broadcast on July 17, 1993, confirms that immune individuals remain susceptible to infection through fluid contact, specifically citing bites.
• By July 18, 1993, most radio and television stations cease operations, marking the end of the world as depicted in the game.
• The US military demolishes bridges over the Ohio River on July 16, 1993, killing hundreds of escaping civilians in a desperate attempt to contain the spread.