The World Health Organization says the number of swine influenza A-H1N1 cases now tops 5,200 in 30 countries, while two additional countries reported their first cases Tuesday.
Finland and Thailand on Tuesday each confirmed two cases of swine flu. Authorities in both countries say each of the patients had recently traveled to Mexico, the epicenter of the outbreak.
In addition, Cuba confirmed its first case Monday. In an essay published online, former Cuban President Fidel Castro accused Mexico of waiting to notify the public about the outbreak until after U.S. President Barack Obama's visit to Mexico last month.
Mexico has announced two more deaths from the virus, bringing its total fatalities to 58. Mexico's health minister, Jose Angel Cordova, said the outbreak in Mexico continues to decline.
Tens of thousands of Mexican primary school children returned to freshly-scrubbed classrooms Monday after a nationwide shutdown aimed at containing the virus.
The swine flu has also killed three people in the United States, one person in Costa Rica and one in Canada.
Other swine flu cases have been confirmed in Guatemala, El Salvador, Panama, Colombia, Argentina, Brazil, Italy, Switzerland, Spain, Portugal, France, Ireland, Britain, the Netherlands, Denmark, Norway, Sweden, Poland, Germany, Austria, Israel, Japan, South Korea, China, Australia and New Zealand.
The World Health Organization has released a report warning that although a flu virus may be considered mild, it can change over time as it spreads around the globe.
Some information for this report was provided by AP.