History, 14.07.2020 04:01 Camobarbie2367

Why did the 1918 outbreak of the Spanish flu cause so many deaths? A. The influenza virus was a strain to which people had no immunity.
B. The World Health Organization had not yet been created.
C. The United Nations could not distribute vaccines fast enough.
D. The virus had combined with an even deadlier avian flu virus.

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Why did the 1918 outbreak of the Spanish flu cause so many deaths? A. The influenza virus was a str...