Mexico's health minister says the country's swine influenza A-H1N1 flu epidemic has reached its peak and is declining.
Jose Angel Cordova said Sunday the outbreak appeared to have peaked in Mexico between April 23 and April 28, and that the number of severe cases is declining. But Cordova cautioned against lowering one's guard against the disease.
An official from the U.S. Centers for Disease Control and Prevention said she is heartened by the reports, but that it is too soon to be certain that Mexico's outbreak is leveling off.
Dr. Anne Schuchat told reporters that scientists still do not know how virulent the virus will be, and she expects more severe cases and more deaths.
Mexico is the epicenter of the international outbreak. It has reported 19 deaths and another 487 infections. The neighboring United States has confirmed 226 cases nationwide and one death.
At least 17 other countries have confirmed cases. The first case in South America was confirmed Sunday in Colombia.