our health editor hugh pym is with me now. take us through the detail. the data from nhs england focuses on a particular type of treatment for covid, the most intensive form of life support you can get in a hospital, effectively an artificial lung. this data shows there were 180 patients between july and lung. this data shows there were 180 patients betweenjuly and september who started this treatment, of those, 28 were pregnant, 19 of those were unvaccinated. that is more than last year as a proportion but this treatment use has changed and is introduced earlier in the treatment process and also true at last year people were more inclined to stay at home, particularly expectant mothers. experts are saying this is a very alarming set of statistics. clear bromley from kent who is 26