heterogenous vaccine

20 LETTERS · STARTS WITH H

heterogenous vaccine is a valid 20-letter word worth 30 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4E1T1E1R1O1G2E1N1O1U1S1V4A1C3C3I1N1E1

4 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 3 + 3 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does heterogenous vaccine mean?