Ah, a Daily Mail reader - that explains the lack of sense of humour and the need to take offence by proxy for events you had nothing to do with.
No one said meningitis was funny - it's a horrible disease especially for children - how would you feel if your child was sick and an ambulance (or in this case a helicopter) crew refused to transport them to hospital?
Disinfecting a SAR aircraft is a normal procedure since all sorts of bodily fluids end up in the back as well as on the crew.
What is pathetic is that the reason for not taking the child was the lack of a separate cockpit, something I don't think any SAR or Air Ambulance helicopter has.