Can a land have multiple copies of a given token (e.g., two Disease)? Can multiple Strife be attached to a single Invader?

Can a land have multiple copies of a given token (e.g., two Disease)? Can multiple Strife be attached to a single Invader?

• Badlands: Each Badlands token separately contributes its Damage bonus to each action that deals Damage in the land.
• Disease: When Invaders would Build in that land, skip the Build Action, remove one Disease, and leave the rest of the Disease in the land.
• Strife: When the Invader the Strife is attached to would deal Damage to the land or to Dahan, remove one Strife from that Invader, reduce the Damage dealt by that Invader to 0, and leave the rest of the Strife attached to the Invader.
• Vitality: When Blight would be added to that land, remove one Vitality per added Blight to prevent that Blight from being added, leaving the rest of the Vitality in the land.
• Wilds: When Invaders would Explore in that land, skip the Explore Action, remove one Wilds, and leave the rest of the Wilds in the land.