Consult an online dictionary to verify the meaning of biocontainment.

It was an unmarked Level 4 biocontainment ambulance. Inside it there were an Army medical-evacuation team and a biocontainment pod known as a bubble stretcher. This was a combat medical stretcher enclosed by a biocontainment bubble made of clear plastic. If someone was bitten by a monkey, he would go into the bubble, and from there he would be transferred to the Slammer.
–The Hot Zone,
Richard Preston

What is the dictionary definition of biocontainment? 

the confinement of live animals

the preservation of deadly diseases

the isolation of contagious organisms 

the description of a specific region

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