Let's get this straight.
People who think that the deep cleaning is a gimmick, at best:
The Lancet medical journal.
The cleaning contractors hired to do the deep clean.
People who think it is a good idea:
Gordon Brown - briefly an academic and then a journalist but, for most of his life, a full-time Labour politician.
Alan Johnson - moved into politics from a job at the postal union.
Sure enough, the deep cleans are going ahead at a cost of £50 million pounds that could be spent on the day-to-day cleaning that the contractors say would be more effective. Another day in our politically managed public services.