(A) 1
(B) 2
(C) ** 3
(D) 4
EXPLANATIONS BELOW
Concept note-1: -There were 3 different waves of illness during the pandemic, starting in March 1918 and subsiding by summer of 1919. The pandemic peaked in the U.S. during the second wave, in the fall of 1918.
Concept note-2: -Because the virus was new, very few people, if any, had some immunity to the disease. From 1918 to 1919, the Spanish flu infected an estimated 500 million people globally. This amounted to about 33% of the world’s population at the time. In addition, the Spanish flu killed about 50 million people.
Concept note-3: -It is estimated that about 500 million people or one-third of the world’s population became infected with this virus. The number of deaths was estimated to be at least 50 million worldwide with about 675, 000 occurring in the United States. Your browser can’t play this video.
Concept note-4: -The 1918 influenza lasted 25 months, and may have originated in Spain, France or the USA with no definite evidence of origination. The first wave lasted approximately from 15 February 1918 to 1 June 1918 and the fourth and final wave lasted approximately from 1 December 1919 to 30 April 1920.
Concept note-5: -It infected 28% of all Americans (Tice). An estimated 675, 000 Americans died of influenza during the pandemic, ten times as many as in the world war. Of the U.S. soldiers who died in Europe, half of them fell to the influenza virus and not to the enemy (Deseret News).