the uk health security agency said the invidual who was visiting the uk spent time in westminster, but has now left the country. in the past few minutes, dr susan hopkins said she expected to find further cases in the coming days. firstly, i think we will detect more cases in the coming days and we are investigating suspected cases at the moment, anyone who is positive and has returned from southern african countries over the past number of weeks. we are chasing those individuals and contacts and asking them to isolate within ten days and retesting a number of contacts as well. that is extremely important to slow the spread in communities. i think we will still see cases coming from other parts of the world as well as cases start to emerge. and i think again, the important thing is we all can do to reduce the transmission, such as face coverings, reducing contacts, where possible working from home, like i