 Andrew Harding reporting. Now to the Democratic Republic of Congo, which is struggling to contain a new strain of mpox, formerly known as monkeypox, described as the most dangerous yet and which has killed a thousand people since the start of last year. The strain, which causes lesions across the whole body, can be passed through close skin-to-skin contact. Trudy Lang has made a number of visits to the affected areas and will be going again next month. She's Professor of Global Health at the University of Oxford.