Anais427 Anais427

28-04-2015
Biology

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Which of the following is a relatively new disease? a. polio, b. smallpox, c. west nile virus, d. all of the above

Answer :

Аноним Аноним

28-04-2015

the answer is c. west nile virus in about year 2012 it appeared and in 1937 there was a outbreak in africa.

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