Leukemia

Animal research is crucial for pets — and their owners

A team of researchers is testing a groundbreaking vaccine that could prevent cancer in dogs.

About 800 dog owners have volunteered their healthy canine companions for a clinical trial. The pets will receive either the vaccine or a placebo and will undergo regular checkups to monitor for tumors. Researchers have spent more than a decade developing the drug; they hope that it could stave off every form of cancer.

Six million canines are diagnosed with cancer annually. If the vaccine works, it could save tens of millions from an untimely end. And since dogs and humans develop similar cancers, researchers are optimistic the vaccine could ultimately be used in...

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