One of the most powerful tools in public health is screening - whether for cancers like cervical or breast cancer, genetic abnormalities, or infectious diseases. Screening can be transformational, detecting disease early and preventing it taking hold. It is, however, often useless and can be harmful, and its advantages are often exaggerated. This talk will consider the situations where screening can help, where it does harm, and why these are usually predictable.A lecture by Chris Whitty 13 JanuaryThe transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/lectures-and-events/medical-screeningGresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege Instagram: http://www.instagram.com/greshamcollege
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