For example,
possibly genes from Ebola could be inserted by accident or design into a virus,
such as influenza or measles.....

Then that deadly virus might spread by a cough or a sneeze....

Dr Karl Johnson, who has spent a lifetime investigating viruses such as Machupo and Ebola,
said that the time may soon come when " any crackpot with a few thousand dollars ' worth
of equipment and a college biology education under his belt could manufactor bugs that would make Ebola...
" look like a walk around the park."

" Other biologists share this concern.....