Ebola vaccine progress

A novel vaccine has temporarily shielded lab monkeys from Ebola, according to a study that will now go into human trials.

A single shot of the vaccine gave macaques "complete short-term and partial long-term protection" from the deadly virus, researchers reported in the journal Nature Medicine.

Animals that received a booster shot developed "durable" immunity.  The vaccine is based on a cold virus that affects chimpanzees.

Human testing will start in early September following the promising results in monkeys, says the US