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Aducanumab the controversial new drug for Alzheimer\u2019s disease, just approved by the FDA in the US is the first approved breakthrough in nearly 20 years. But, as Sarah Boseley explains, scientists dispute the drug\u2019s effectiveness.

Good news from a study published in Lancet Healthy Longevity looking at protection levels from getting Covid. It studied the risk of COVID reinfection in care home staff and occupants up to 10 months after first being unwell and showed substantial levels of protection is retained.

And a new paper on Vitamin D deficiency in Africa \u2013 the first large prevalence study in children on the continent.

Plus bestselling author and gynaecologist Dr Jen Gunter on her Menopause Manifesto, part two in our mini-series on Health Check. Dr Gunter unpicks the facts and feminism of how society\u2019s focus on what happens to women\u2019s bodies has shaped and hindered treatment for the menopause.

Presenter: Claudia Hammond\nProducer: Erika Wright

Image: Abstract medical icon of head showing Alzheimer's memory loss due to dementia and brain disease\nCredit: wildpixel/Getty Images