a partial list
http://www.al-islam.org/laws/najisthings.html
84. * The following ten things are essentially najis:
Urine
Faeces
Semen
Dead body
Blood
Dog
Pig
Kafir
Alcoholic liquors
The sweat of an animal who persistently eats najasat.
Dogs and Pigs
106. The dogs and pigs which live on land are najis, and even their hair, bones, paws and nails, and every liquid substance of their body, is najis. However, sea dogs and pigs are Pak.
Kafir
107. * An infidel i.e. a person who does not believe in Allah and His Oneness, is najis. ...
As regards the people of the Book (i.e. the Jews and the Christians) who do not accept the Prophethood of Prophet Muhammad bin Abdullah (Peace be upon him and his progeny), they are commonly considered najis, but it is not improbable that they are Pak. Ho wever, it is better to avoid them.
108. The entire body of a Kafir, including his hair and nails, and all liquid substances of his body, are najis.
SO mohammedeans consider non-muslims (kafirs) equal to pigs ,dogs, and shyt.