Overseas medical teams

New foreign medical teams will relieve exhausted doctors, nurses

There have been nearly 4700 cases of measles diagnosed since October.

The UK government said in a statement 14 medics will arrive on Sunday, to relieve a team that arrived two weeks ago.

"The medical system here is under the most enormous amount of strain, with the hospital operating far, far beyond its usual capacity," said Becky Platt, a paediatric nurse with the UK Emergency Medical Team.

"The local staff have been working around the clock for weeks and weeks on end, many of them without proper breaks or any days off. Some of them are absolutely on their knees."