Hong Kong's H1N1 tally has exceeded1000 with 41 new cases conformed, the Department of Health (DH) said on Tuesday.

The tally has risen to 1014 with 41 new cases were confirmed in the 24 hours to 2.30pm Tuesday, involving 16 males and 25 females, aged between 2 to 55.

China mainland reported a 1151 confirmed cases of H1N1 up to 18:00 Tuesday, with 870 healed, 280 under treatment and 1 electrocuted accidently.

There are about 15 H1N1 patients in every 100,000 residents in Hong Kong without reported fatality.

With well over 100 countries reporting cases, once a fully fit pandemic virus emerges, its further international spread is unstoppable, said Dr. Margaret Chan, Director-General of the World Health Organization (WHO), in a statement.

Chen also warned that We are in phase 6 - that is, we are in the early days of the 2009 influenza pandemic.

Experts from WHO also predicted that the pandemic may last for one or two year, with one third of the world's population infected.