To make sure it does, Pfizer is working on two new formulations for children, including one that would require only one dose to treat an ear infection instead of five.
People who inherit only one dose of the mutation and become H.I.V.-infected often take about two years longer to develop AIDS than infected people without the mutation.
There are thought to be a third of a million children aged 10-14 whadhad no dose of MMR and another third who had only one dose.
Professor Carole Longson, director of health technology evaluation at Nice, said: "With the Intrabeam Radiotherapy System only one dose is required.
Defying the expectations of experts, clinical trials are showing that the new H1N1 swine flu vaccine protects with only one dose instead of two, so the vaccine supplies now being made will go twice as far as had been predicted.
Six patients needed only one dose of rasburicase.
For I131, only one dose model was presented.
Ceftriaxon (Rocephin, Roche, Istanbul) 1 g was given to all patients only one dose as prophylactic antibiotheraphy.
We tested only one dose of triptans, not several to show a possible dose response related effect.
