In southern New York state, a dairyman, his wife and their hired man stretched out their hands palm upwards, like suppliants, to Dr. H. P. Senftner, associate director of the state department of ...

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The word vaccine is derived from the latin word vacca, meaning cow, and relates back to vaccine history when Edward Jenner developed a smallpox vaccine in the late 1700s made from cowpox. As a ...

An orthopoxvirus infection caused nonhealing cutaneous lesions in three individuals in the country of Georgia. The patients had contact with ill cows, and there was no evidence of human-to-human ...