COVID 19 Vaccine Crossword Puzzle

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Across
  1. 2. single-stranded RNA complementary to one DNA strand
  2. 5. Causes a disease through microorganisms
  3. 6. used for the COVID 19 vaccine and creates protein within the body
Down
  1. 1. Vaccines use the killed version of the virus
  2. 3. A way to cool down the vaccines
  3. 4. A blood protein produced to counteract a specific antigen