July 7 (Reuters) - Here are details about the spread of the new flu, a mixture of swine, bird and human viruses which has infected more than 79,000 people, according to the latest World Health Organisation (WHO) and local health authority tallies.

The WHO has declared an influenza pandemic and advised governments to prepare for a long-term battle against the virus.

DEATH TOLL: 435

CONFIRMED CASES: The number of confirmed cases of H1N1 is now at least 95,500.

COUNTRIES WORST AFFECTED:

DEATHS CASES

UNITED STATES 170 33,902***

MEXICO 119 10,262*

ARGENTINA 60 2,800++

CANADA 25 7,983

CHILE 14 7,376**

AUSTRALIA 10 5,298+

THAILAND 7 2,076

BRITAIN 7 7,447****

URUGUAY 4 195

NEW ZEALAND 3 1,059

COSTA RICA 3 277

PERU 2 2,027

GUATEMALA 2 286

COLOMBIA 2 118

DOMINICAN REPUBLIC 2 108

PHILIPPINES 1 1,709

SPAIN 1 776

BRAZIL 1 737

HONDURAS 1 123

PARAGUAY 1 106

NOTES: WHO figures sometimes lag local confirmations covered by Reuters.

* = Mexico Ministry of Health figures.

** = Chilean health authorities.

*** = U.S. Centers for Disease Control and Prevention.

**** = British Health Protection Agency figures.

+ = Australian government.

++ = Argentina's health ministry.

Sources: Reuters/WHO.

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