Leopards can attack humans which makes them dangerous for humans to be around.
But most times leopards will avoid humans and run off when they come into contact with humans but still if you come into contact with a Leopard try to stay away from it as far as away as you can.
If the Leopard attacks a human it can be deadly or severely injure the person.
It's very rare that a Leopard will harm a human unless it feels threatened as they do pretty good around humans but still be very careful when you come into contact or get around Leopards.