... Epidemiology Center) accused the World Health Organization of being slow to respond to the country's warning about a health crisis that turned into a global swine flu scare and called for an investigation.
[He] told The Associated Press late Thursday his center alerted the Pan American Health Organization on April 16 about alarming occurrences of flu and atypical pneumonia in Mexico. But no...
... discouraging travel to Mexico. The World Health Organization doesn't want borders to be closed or a ban on travel but other countries are moving in that direction. Note that the WHO's director general is from the PRC (who.int/dg/chan/en/index.html).
And, the outbreak might have started in the area of a Smithfield pig farm in Mexico; link. Hundreds in one village got sick (or thought they were...