U.S. soldier survived Spanish flu , not once , but twice . The Spanish flu ravaged military camps where soldiers trained for WWI . Letter says they put ` ` under quarantine to prevent an outbreak of Spanish influenza '' Martin ` ` Al '' Culhane in turn told his brother to keep it secret from members of family .
U.S. soldier survived Spanish flu pandemic not once , but twice . 1918 Spanish flu ravaged military camps where soldiers trained for WWI . Letter says camp put `` under quarantine to prevent an epidemic of Spanish influenza '' Martin `` Al '' Culhane in letter told his brother to keep infection secret from rest of family .