The word Varicela is misspelled against Varicella, a noun meaning "Chicken pox."
-->
Varicella has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings varice & a which should not be misspelled with single 'L'
Wrong Spelling:  varice-l-a 
Correct Spelling:  varice-ll-a 
Find more wrongly spelled words of Varicella to spell it well.