Yellow fever is caused by a

Options :
  1. virus
  2. bacteria
  3. protozoa
  4. fungus
Answer and Explanation :-

Answer: Option 1

Explanation:

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Umani e divini erano forse diversi nell'essenza, ma uguali nel cuore, e la speranza aveva realmente il potere di riscrivere i destini di tutti. Ora anche gli Dei lo sapevano.
-Diletta Brizzi Take me into your Hell