The four presumed human H7N2 bird flu cases identified in Britain last week are a reminder that the next flu pandemic could be sparked by a virus other than the feared H5N1 strain, experts say
The death rate in Bulgaria is minus 60,000 people a year, another 70,000 emigrate, which accounts for the annual population loss of 130,000 people, or 365 people a day, or for 15 people per hour.
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