A vaccine still in development can protect against cancer by teaching immune cells to recognize tumors and attack them - a type of immunotherapy.
Elephants die of cancer much less often than humans of the same age. The reason for this is that they have revived a special, usually sleeping, pseudogene that kills off damaged cells.
Cancer doesn't have to be an inevitable destiny. Scientists know exactly what triggers the disease. And everyone can do something against the biggest threats.
Parents in the southern Italian city of Taranto are taking on the Arcelor Mittal Italia steelworks they say is polluting the air and killing their children.
Facing a lawsuit by prisoners over alleged health hazards, the US Bureau of Prisons has aborted a longstanding plan to build a jail on an abandoned coal mine. US activists are claiming a rare environmental victory.
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