Pertusis or Pertussis: How To spell?

The word Pertusis is misspelled against Pertussis, a noun meaning "The whooping cough."

Pertussis has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings pertu & is which should not be misspelled with single 'S'
Wrong Spelling: pertu-s-is
Correct Spelling: pertu-ss-is
Check more misspelled words of Pertussis to spell it correct.