Matthew Reeve of south London estate agent Mercer Taylor advises against overstretching yourself, suggesting a slush fund is needed to run the property efficiently.
Professor Eric Taylor, from the Institute of Psychiatry at King's College London, said support across the UK was "patchy" but called it a "developing situation".
Professor John Hermon-Taylor, head of surgery at St George's Hospital in London, believes the bacterium can be linked to both Crohn's disease and an almost identical condition in cattle.