
Many players mistakenly believe the infection rate increases during standard infection steps, but it actually only changes when an Epidemic card is drawn.
According to the Z-M Games Official Rulebook, the infection rate increases specifically when an Epidemic card is drawn from the Player Deck.
Pandemic Official Rules [edition not specified]
These rules correspond to the US edition of Pandemic.
Official Rule Breakdown
The infection rate mechanism is tied directly to the Epidemic cards. When a player draws an Epidemic card from the Player Deck, the player must follow a three-step process: 1) Increase the infection rate marker forward 1 space on the Infection Rate Track; 2) Infect by drawing the bottom card from the Infection Deck and placing 3 cubes on that city, then discarding that card; and 3) Intensify by shuffling the cards in the Infection Discard Pile and placing them on top of the Infection Deck (So…
Step-by-Step
- Step 1: Move the Infection Rate marker forward 1 space on the Infection Rate Track.
- Step 2: Draw the bottom card from the Infection Deck, place 3 disease cubes of the matching color on that city, and discard the card.
- Step 3: Shuffle all cards in the Infection Discard Pile and place them on top of the Infection Deck.
Example Play Situation
Alice draws 2 cards from the Player Deck and finds an Epidemic card. She moves the Infection Rate marker forward one space, places 3 cubes on the city at the bottom of the Infection Deck, and then shuffles the discard pile back onto the top of the deck.

Common Misconceptions
- Increasing the rate after every infection
- Thinking the rate increases during the Infect cities step
- Confusing the Outbreak marker with the Infection Rate marker
Quick Reference
| You Can | You Cannot |
|---|---|
| Move the marker forward 1 space when an Epidemic is drawn | Do not increase the rate during normal infection steps |
| Place 3 cubes on the city from the bottom of the Infection Deck | Do not forget to shuffle the discard pile after an Epidemic |
| Shuffle the discard pile onto the top of the deck | Do not draw replacement cards for Epidemic cards |
Frequently Asked Questions
- What is the official rule for the infection rate in Pandemic?
- The rate increases by 1 space whenever an Epidemic card is drawn from the Player Deck.
- Does the infection rate go up when a city has an outbreak?
- No, outbreaks move the Outbreaks marker, not the Infection Rate marker.
- How many cubes do I place if an Epidemic happens?
- You draw the bottom card from the Infection Deck and place 3 cubes on that city.
- What happens to the Infection Discard Pile after an Epidemic?
- You must shuffle those cards and place them on top of the Infection Deck.






