The World Health Organization (WHO) on Thursday confirmed a total of 257 human infections of swine flu, which were officially reported from 11 countries.

A woman wears a mask while taking subway train in New York, the United States, April 29, 2009. (Xinhua Photo)

Countries that have reported laboratory-confirmed cases with no deaths include Austria (1), Canada (19), Germany (3), Israel (2), the Netherlands (1), New Zealand (3), Spain (13), Switzerland (1) and Britain (8).

The WHO stressed that the situation continued to evolve rapidly and it would renew its tally on a regular basis.

VietNamNet/Xinhuanet