Health workers at a health facility in the city of Monrovia, Liberia, say they have seen a decrease in the number of cases they have to deal with as a result of the pandemic.
Health workers said on Wednesday they were not expecting a major surge in cases as the government has stepped up the fight against the disease, but said the trend was concerning.
The United Nations reported on Wednesday that the number for the period of January to March this year was 2,865, down by a quarter compared with the same period last year.
The number of new cases rose by more than 40 per cent compared with this time last year, according to a report by the World Health Organization.
The WHO said on Thursday that the rate of new infections dropped to 8.8 per 1,000 people, down from 9.1 per 1 1,500 last year but up from 8.4 per 1 million people a year ago.
However, it said that the increase in deaths, which were the main cause of the fall, was not reflected in the figures.
More than 5,000 health workers have been infected with the virus in Liberia, and the number who have died has risen from 8,717 to 9,847.
On Tuesday, health authorities announced the closure of the Mirebalais Health Centre, a community health centre in the capital, Monrobi, which has been closed since early March due to the outbreak.
It is the largest such closure in the world.