How bad would it be if the virus escaped?

[摘要] Nobody really knows what the consequences would be if the recently reconstructed 1918 influenza virus escaped or was released maliciously. Some virologists point out that current influenza drugs and vaccines are partially effective inmice against virus strains containing key genes from the 1918 strain. But virologists say the vaccine has not been tested on the full virus. They say that influenza viruses could quickly mutate to become resistant to drugs given to researchers working with the 1918 strain.