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The cause was traced to prairie dogs that had been infected by imported African rodents at a pet distribution center. Fortunately, this disease was not as deadly as smallpox. People generally become ...

There are two smallpox vaccines in the US. For the newer, safer one, supply is scarce — representatives from the Centers for Disease Control and Prevention said on Monday that upwards of 1,000 ...

Done again and again, they circled and beat down the disease. Smallpox is caused by variola virus. It is contagious and will spread from person to person. A fever gives way to a rash, that turns ...

No further research is needed on the samples, given that there are multiple vaccines to prevent smallpox disease, with enough doses stockpiled for everyone living in the US; updated vaccines that have ...

yet different enough not to bring on the smallpox disease once it enters your body. This similar virus is cowpox. The cow to the left has been intentionally infected with cowpox virus. The fluid ...