Quarantzine

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Across
  1. 3. red-breasted bird (5)
  2. 6. a plant sporting yellow spring flowers with a long trumpet shaped centre (8)
  3. 10. a large hairy social insect which flies with a loud hum (9)
  4. 12. the rarefied gaseous envelope of a star (6)
  5. 13. a white drooping early spring flower (8)
  6. 15. a nectar-feeding insect with two pairs of large, typically brightly coloured wings (9)
  7. 18. the Chinese province at ground zero (5)
  8. 19. a bulbous spring-flowering plant with boldly coloured cup-shaped flowers (5)
  9. 20. Dr. Chris _, Britain's chief medical officer (6)
  10. 21. gregarious songbird, often brightly coloured (8)
  11. 23. a substance used to stimulate the production of antibodies in order to provide immunity against a disease (7)
  12. 24. video conferencing platform founded in 2011 (4)
  13. 27. extreme or irrational fear of confined places (14)
  14. 29. a pale yellow colour or flower seen in early spring (8)
  15. 30. a term for grim amusement in a difficult situation (7,6)
  16. 31. an appliance for artificial respiration (10)
  17. 32. a global or regional outbreak of a disease (8)
  18. 33. area of hospital for those in critical condition (3)
  19. 34. a compact growth on a plant that develops into a leaf, flower, or shoot (3)
Down
  1. 1. a European woodland plant that produces clusters of sapphire-coloured flowers in spring (8)
  2. 2. (of a disease) regularly found among particular people or an area (7)
  3. 4. the word for forty in italian (8)
  4. 5. Trump has a hunch this drug will work... (18)
  5. 7. an abnormally high body temperature (5)
  6. 8. the action of keeping something harmful under control or within limits (11)
  7. 9. an activity done in leisure time for pleasure (5)
  8. 10. (of a tree) to produce flowers or bunches of flowers (7)
  9. 11. a widespread occurrence of an infectious disease in a community at a particular time (7)
  10. 14. Florence _, 19th century nurse (11)
  11. 16. Dr. Anthony _, American epidemiologist (5)
  12. 17. the act of separating oneself from others (4-9)
  13. 22. a state of isolation or restricted access instituted as a security measure (8)
  14. 25. to expel air from the lungs with a sudden sharp sound (5)
  15. 26. the larva of a butterfly or moth (11
  16. 27. the journey to work (7)
  17. 28. play or move in a cheerful or lively way (6)
  18. 31. an infective agent that typically consists of a nucleic acid molecule in a protein coat (5)