Why do gnat bites itch so much?

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Tags

1. #associated
2. #specifically
3. #telltale
4. #puncture
5. #blood
6. #bites
7. #allergic
8. #resulting
9. #mosquito
10. #anticoagulant
11. #clotting
12. #which
13. #itching
14. #reaction
15. #saliva
16. #prevents