WHO put on ‘high alert’ for bird flu
The World Health Organization has called on all countries to closely monitor outbreaks of deadly bird flu in birds and poultry, and to promptly report any human cases that could signal the start of a flu pandemic. Different strains of bird flu have been spreading across Europe and Asia since late last year, leading to largescale slaughter of poultry in some countries and occasional human deaths in China. Experts fear the virus could mutate to spread more easily among people. Nearly 40 countries have reported new outbreaks of the highly pathogenic bird flu in poultry or wild birds since November, according to the WHO.