LONDON - Scientists from London and Switzerland have reported in The Lancet medical journal that a simple ante-natal screening test for syphilis and immediate treatment could halve the number of stillbirths caused by this infection - at very low cost. David Mabey, Professor of Communicable Diseases at the London School of Hygiene and Tropical Medicine - who wrote the accompanying comment article in The Lancet - talks with Peter Goodwin about the importance of this finding.