GENEVA - The World Health Organization has raised its tally of confirmed human cases of swine flu to 4,694 in 30 countries, after the United States shot ahead of Mexico over the weekend.

The UN agency says the H1N1 influenza A virus has killed 53 people worldwide. The WHO says the United States has reported 2,532 laboratory-confirmed cases, including three deaths.

Mexico has 1,626 cases, including 48 deaths.

The WHO says Canada has 284 cases, including one death - but two additional cases have already been reported in Canada.

The figures from WHO are often behind those published by countries as the agency waits for official government confirmation before updating its tally.

Costa Rica has eight cases, including one death.

Spain has 95 cases, Britain 47, Panama 15, France 13, Germany 11, Italy nine, Brazil eight, Israel and New Zealand seven each, and Japan and El Salvador four each.

South Korea, Netherlands and Colombia have three each.

Sweden and Norway have two each.

China, Hong Kong, Argentina, Australia, Austria, Denmark, Guatemala, Ireland, Poland, Portugal and Switzerland have one each.

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