Yes, TULAREMIAS is a Scrabble word!

Letter values in Scrabble US: T 1, U 1, L 1, A 1, R 1, E 1, M 3, I 1, A 1, S 1.

Is it a valid word?

TULAREMIAS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a highly infectious disease of rodents (especially rabbits and squirrels) and sometimes transmitted to humans by ticks or flies or by handling infected animals

Also: rabbit fever, deer fly fever.

Not playable in Scrabble US: TULARAEMIA, YATOBYO.