"Our study adds to a growing body of work suggesting that vaccines may play a role in healthy aging strategies beyond solely preventing acute illness," study author Eileen Crimmins, of the University of Southern California, said.
For the next few days, Jupiter, Saturn, Venus, Mercury, Neptune and Uranus will all be visible at the same time in the night sky – although binoculars or a telescope will be needed to spot the latter two planets.
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