Face the epidemic and compete to be the first to eradicate the virus by isolating healthy bodies. You can either play with one card or discard any number of cards and then replenish three. The cards can be one of four body parts (or a joker part), one of four viruses (specific to each body part or a joker virus), or a special action card. You can only use one of each body part in your player area. Healing pills and viruses can be used to cure infected body parts of any player, but only those of the same color. Another healing pill can be used to cure any other body part, making it immune to infection. Your goal is to be the first to have four healthy body parts intact.