Advances including better nutrition, antiviral medications and vaccines are preventing the rapid spread of the illness.
But many anticancer and antiviral drugs are toxic to marrow.
Surveillance systems and antiviral treatments will help contain a disease, but they cannot halt it the way a vaccine could.
One way to slow its spread is to treat infected birds with amantadine, an antiviral drug meant for humans.
Better vaccines and antiviral drugs, they argue, would be vital to protect people if an outbreak were to occur.
In the meantime, there are antiviral medicines for treatment of the symptoms, provided the condition is caught early enough.
The antiviral era is upon us, with an array of virus-fighting drugs on the market and in development.
But stimulating their sparse natural production remains a hurdle in developing an antiviral therapy.
Because the antiviral effect of the chimaera lasts only about a week, patients would need to have regular injections.
The antiviral immune response, however, is not yet on par with that seen in humans.