A WHO report says the number of cases in Liberia is up, and the number has jumped from 3,000 in October to more than 9,000 today.
The latest numbers, released by the agency on Monday, were based on a review of national surveillance data from the end of September.
The numbers of confirmed and probable cases are at an all-time high, with more than 30,000 new cases.
WHO Director-General Margaret Chan said there had been “a dramatic increase” in cases in the capital, Monrovia, since the end “of the outbreak in December” in Liberia.
The report said the number is expected to climb to 30,200 cases by March and then to 40,000 by April.
It said the latest increase in cases comes at a time when authorities are “facing increasing pressures” to control the outbreak.
WHO said the Ebola outbreak in Liberia has seen an increase in fatalities, cases and cases per 100,000 population.
The number of deaths is now at an “all-time record”, but the report said Liberia has now surpassed the country with the highest number of confirmed Ebola cases per capita.
“The country has recorded more than 15,000 cases in all, with an average of 6.5 confirmed cases per person,” said the report.
“This shows that there is still room for improvement in Liberia, with the country still facing significant challenges.”