Claudia Hammond finds out if seasonal winds, such as the Foehn, found in the Alps, and the Santa Ana which blows along the Californian coast, can make you ill. And the state of the world's vaccines. Show more
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Claudia Hammond finds out if seasonal winds, such as the Foehn, found in the Alps, and the Santa Ana which blows along the Californian coast, can make you ill. And the state of the world's vaccines. Show more