Public Health authorities have written to doctors in the UK to ask them to look out for cases of Ebola following the recent outbreak in West Africa which has killed nearly 500 people. Dr Mark Porter talks to David Heymann, professor of infectious disease epidemiology at the London School of Hygiene and Tropical Medicine about the risks of Ebola cases coming to the UK. He is joined by Dr Margaret McCartney to discuss why some types of bike saddles can cause erectile dysfunction. He also talks to Glyn Elwyn about the pros and cons of recording consultations with your doctor Also, insect bites, why do some people get bitten more than others, what's the best repellent and what's the best treatment if you do get bitten?