Answer:

pox

AnswerCrossword Clue
POXChicken ... (childhood disease)
POXPlague
POXCurse
POXChicken ..
POX"A .. on you!": old curse
POXOld curse word
POX"A .. of this gout!": "King Henry IV, Part 2"
POX"A .. upon thee!"
POXQuaint curse
POX"A ... on thee!"
POXPlague or curse
POX"A ... upon thee!"
POXOld curse
POXChicken ... (childhood affliction)
POXCurse, to King Arthur
POXChicken ...
POXChicken ...: child's disease
POXSkin disease
POXWord with cow or chicken.
POXSmall, for one
POXWord with chicken or small
POXSmall or chicken
POXChicken or small
POXDisease of sweet potatoes
POXHex, of a sort
POXUnpleasant illness
POXIt may leave marks
POX"A ... on you!"
POXIt comes in a chicken variety
POXChicken ... (kid's ailment)
POX"A ..... upon thee!"
POXTot's ailment
POXChicken follower
POX"A ... on you!" (old curse)
POXWord with "chicken" or "small"
POXChicken tail
POXMisfortune wished upon another
POXDisease that causes a skin rash
POXContagious viral infection
POXCow or chicken follower