अमेरिकायाव पितज्वारा 1878 माइथायाव गाज्रिसिन गोसारदों जेराव मिसिसिपी सेरफाङावनो 20 रोजा थैदों ।
Yellow fever spread the worst in 1978 in the United States due which 20 thousand had died in Mississippi valley itself .