GENEVA (AP) – The World Health Organization 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 so-called A (H1N1) virus has killed 53 people worldwide, the agency said.

The United States has reported 2,532 laboratory-confirmed cases, including three deaths, WHO said.

Mexico has 1,626 cases, including 48 deaths.

Canada has 284 cases, including one death, while 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.

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