No case of swine flu has been reported in Poland, Health Minister Ewa Kopacz said Tuesday.
A woman hospitalized in Zielona Gora in western Poland after returning from Mexico early this month with flu symptoms has not been infected with the H1N1 virus, Kopacz was quoted by Polish news agency PAP as saying.
Swine flu has killed 149 people in Mexico. The first confirmed case of the disease in Europe was reported in Spain on Monday.
Swine flu is a respiratory disease that infects pigs and does not normally infect humans. But sporadic cases have happened, usually among people who had close contact with pigs.
On Monday, the World Health Organization (WHO) raised its global alert level from Phase 3 to Phase 4, signaling the swine flu virus was spreading from human to human in community outbreaks, but it did not declare a full-blown pandemic.