“Swine flu no worse than regular flu, Napolitano says”  (US department of state)

http://edition.cnn.com/2009/HEALTH/05/04/swine.flu.main/index.html

swine flu, a mild strain (BBC world)

http://news.bbc.co.uk/2/hi/health/8028371.stm

“No rationale for travel restriction “  (WHO official site)

http://www.who.int/csr/disease/swineflu/guidance/public_health/travel_advice/en/index.html

Mexico's Stocks Open Higher On Econ, Flu Optimism; IPC +0.7% (The wall street Journal)

http://online.wsj.com/article/BT-CO-20090505-711586.html

Mexico prepares to reopen shops, schools(USA Today)

http://www.usatoday.com/news/health/2009-05-04-mexico-flu_N.htm