Decades after an effective vaccine helped wipe smallpox off the face of the earth, researchers claim they finally understand how that injection induces immunity: by recruiting bacteria found on the ...

Smallpox and chickenpox might seem similar. They both cause rashes and blisters. They both have “pox” in their names. But other than that, they’re completely different diseases. You really ...

Use the purifier to isolate the viruses. Smallpox vaccines contains cowpox viruses but not the bacteria and other impurities found in the fluid collected from such pustules. To make the vaccine ...

The number of bacteria and viruses lurking in the permafrost ... Other pathogens - such as smallpox or the influenza strain that killed tens of millions in 1917 and 1918 - may also be present ...