Research suggests that ‘pathogens might not get such an easy ride on their migratory hosts as we might assume.’
Urumin has been found to be effective against influenza strains that have developed resistance to commonly used drugs.
January’s fatalities were up to four times higher than the same month in past years, and brought the total H7N9 death toll to 100 people since October.
Shanghai, a city with the population of 24 million, has already reported one human case of H7N9 bird flu infection this month.
The rapid spread of bird flu has caused Seoul to raise its alert to the highest level for the first time.