Pandemic: The Deadly Flu of 1918. (Deadly Speed and Everyone Was Sick)

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Across
  1. 2. Serious complications attacked this body part.
  2. 4. There was a rumour the RMS Niagara hadn't done this
  3. 7. This happened at the same time as the 1918 flu.
Down
  1. 1. The month the virus had spread through New Zealand
  2. 3. Which hemisphere did the virus reach, mid year?
  3. 5. The last name of the Prime Minister on the ship RMS Niagara
  4. 6. The killer virus could do this during WWI.