Analisa Fandino (L) holds onto her father Dino as she receives a free H1N1 flu vaccine at Richard J. Daley College in Chicago October 24, 2009. Six city colleges offered the vaccine to children, the elderly, pregnant women and other "high risk" people. US President Barack Obama has declared 2009 H1N1 flu a national emergency, the White House said on Saturday. [Agencies]