A possible pandemic? (Part 3)
According to statistics, mortality rate of a person infected with bird flu is extremely high, compared to those who were infected with the Spanish flu. The virus strain (its DNA characteristics) evolve as it is passed from birds to humans, and human to human. There is a possibility that the mutated virus is more infectious. While vaccines are being developed by scientists in different countries, the World Health Organization stated in its website that if a pandemic occurs, the need for more vaccines might not be met.
In the case of SARS, individuals infected with the disease were isolated and an outbreak did not occur. But with bird flu, isolating infected migratory birds is not possible.