The villagers have become extinct. Although they continue to search for survivors apart from the illagers the type of orders was changed From the 2nd night the first waves will begin and the more nights pass, the more zombies will appear in the waves. The inefficiency of the discovery of the scientific villager who said that with potions of fire and weakness with a golden apple you could cure yourself has been discovered. Currently the few survivors have found an alternative cure in which they prolong the No Contagion time. It is required to heat a cauldron with water. In this one put a zombie head with gunpowder, blaze powder and a dense potion. You will get azombifying potion. Put that Zombifying Potion in a cauldron with water that is on the fire and put the Zombifying Potion inside the cauldron. then put in a potion of regeneration two and a golden apple. You will get a blue apple. That blue apple will be the cure.

If your friend has already turned into a zombie, just throw him a potion of weakness and then the blue apple.