Just as the Ebola crisis in Liberia appears to be beginning to improve, the outbreak in neighbouring Sierra Leone takes a turn for the worse.
Campaign group African Governance Initiative (AGI) has said the number of Ebola cases in Sierra Leone is rising "frighteningly quickly," up to 9 times faster than it was just two months ago.
Sierra Leone's rural areas are worst affected by the virus, but the group claims the situation is also escalating in capital city Freetown, where there are six times the number of cases per day as there were during the summer.
Only in the northern region of Bombali has the outbreak begun to slow.
There have been more than 1,500 Ebola fatalities in Sierra Leone, around a thousand fewer than in Liberia, the country worst hit.
Last week the World Health Organisation said it was "getting an upper hand on the virus" and slowing its spread.
See the Ebola outbreak mapped
See the Ebola outbreak mapped
1/7 25 March 2014
This outbreak of the Ebola virus first emerged in the Guéckédou region of Guinea, at a crossroads with both Liberia and Sierra Leone
2/7 31 March
On 31 March the WHO confirmed the outbreak was now international, spreading first into Liberia's northern-most Lofa region
3/7 27 May
The virus spread to Sierra Leone at the end of May - just as agencies were hoping the worst was over
4/7 27 July
In Sierra Leone the virus boomed, and then it spread to Nigeria when the Liberian diplomat Patrick Sawyer flew from Monrovia to Lagos
5/7 9 August
The Nigeria cases sparked fears around the world, and there have now been deaths in Spain and Saudi Arabia involving people who had travelled to West Africa. The numbers of cases continue to rise
6/7 17-20 September
In mid-September, Senegal confirmed its first case linked to the Ebola outbreak, a development the WHO described as a top priority emergency. Numbers of cases continued to grow exponentially in Guinea, Sierra Leone and Liberia, as experts warned they could number one million by January if not contained
7/7 8 October
Two cases of Ebola have now been reported in the US and Europe - the first times the virus has been contracted among health workers outside Africa
The worsening outbreak specific to Sierra Leone comes following news that an infected UN employee has been flown to France for "high-security isolation" - the first case on French soil.
There are also reports that another doctor in northern Sierra Leone has tested positive for Ebola prompting concerns over how the medical operation in the region can manage after four doctors died in recent months.
To help check the spread of Ebola in Sierra Leone, Britain has pledged £20 million to build and run three new medical laboratories, which will be used to test blood samples and virus swabs.
The first lab opened in Kerry Town last week, immediately doubling the country's testing capacity. Two further are planned in Port Loko and Makeni under the direction of UK Royal Engineers, Publish Health England, and the Department for International Development.
When all three are finished, it is expected that Sierra Leone's testing capacity will be four times what it was and will be able to turn around blood samples in 24 hours instead of the current four days.
International Development Secretary Justine Greening said: "Tackling Ebola at the source is key to beating it and stopping the spread.
"Some of Britain's best and brightest scientists will be at the forefront of our UK-funded testing facilities ensuring that people with Ebola are isolated and then treated as soon as possible."
Additional reporting from PAReuse content