One percent of the ill would die. That would equate to 1/3rd of one percent of the world population. Say 20 million people world wide out of a population of six billion. Troublesome but nowhere near the 33% of the population than died during the plague in Europe.
>>One percent of the ill would die. That would equate to 1/3rd of one percent of the world population<<
The case fatality rate for H5N1 is in the 70-80% range
http://www.recombinomics.com/H5N1_case_mortality_rate.html
WHO projections on deaths are VERY conservative
http://www.recombinomics.com/H5N1_reassort_recombine.html
and 1 Billion deaths are possible applying the fatality rate to the number infected.