Smallpox public health risk

After an aerosol release of smallpox, public health authorities will make vaccine supplies available to affected communities. Postexposure vaccination is effective in preventing infection or lowering mortality up to 4 days after exposure. Physicians should give the vaccine to suspected cases to ensure that a mistaken diagnosis does not place patients at risk for smallpox. An emergency vaccination program should also include (26) ... 

These are anthrax, smallpox, plague, botulism, tularemia, viral hemorrhagic fevers and ricin. They can disseminate and present a high risk on public health. Most of them require Level 4 Biosafety laboratories. 

The historic objective of vaccination has been to induce long-lasting immunity against a disease for which the recipient is at risk. The most successful vaccination campaign eradicated smallpox as a public health problem. Particularly, vaccination against common infectious agents, including poliomyelitis, measles, mumps, and rubella, over the last 50 years has led to effective prevention of many diseases. 

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