I have long believed that China’s biowarfare infrastructure is made of of several dislocated labs, each using different mammalian hosts to develop virii and their antidotes.
Don’t be deceived.
The US has a biowarfare structure, also.
One must know what to develop antidotes/vaccines -against- to keep troops in theatre.
Swine flu, anyone?
Bat flu, folks?
And, those labs are still in development.
Likely, some bio-agents are traded between labs for “further” development.
Like, say, bird flu?
Don’t forget Lyme! It is now affecting millions and they still can’t get a vaccine or cure for it.