They did, they had to.
Two things about bioweapons, have them, weaponize them, and then create a vaccine for your troops.
Most, like Anthrax, Rabies, are area weapons, exposure is not likely to spread.
When Ebola came along, it was picked up, kills quick, spreads fast. It takes the Virus to make vaccines, which the Russians are now mass producing, according to Russia Today. They say it is 80-90% effective, I wonder who they tested it on?
Some are too fast acting, the 1918 Flu, Parrot Fever, kill in twelve hours, and stop the spreading.
I do not think this a weapons test, as paient zero has been identified. A weapon would have more cases.
This is from the most remorseless killer of all time, Nature.
The 1918 Flu did kill 50 million, from healthy to dead in twelve hours, and it killed the healthy. It liked the young people, and older people who had had other flus were immune. It rocked WWI, where people were packed together in camps, troop ships, and trenchs.
From what I read, nothing worked, it was unstoppable, then it just got tired of killing people and stopped.
It stopped worldwide, like after so many reproductions, all the flu changed.
As for that hope, it became a normal flu, all Ebolas are deadly.
The Black Death liked Europeans. It was known in other places, but never became a problem.
It did in Europe what Smallpox did in the Americas, 75 million dead.
In both cases many who were exposed did not develop the disease. Some did not die.
Until the test is fully run in Monrovia, we will not have those numbers.
The Black Death popped up, ravaged a port city, then died down, then popped up somewhere else.
When it finally stopped, it returned a generation later, sometimes longer.
Some say those exposed who did not develop it did get immunity, but that wore off.
It is hard to tell what will happen, we have not done well since we recently discovered Virus.