Sierra Leone has exceeded Liberia’s number of reported cases of Ebola, according to a situation report from the World Health Organization.

There were nearly 600 new cases in Sierra Leone in the past week, bringing the total number of reported cases to just under 7,900, with more than 1,750 deaths reported. This is about 175 more cases than Liberia has reported, though information from Liberia is missing from Dec. 3-7, the WHO reported.

Liberia has reported just over 7,700 cases and almost 3,200 deaths; the spread of the disease continues to slowly decline. New case incidence in Guinea has remained fairly constant over the past few months at around 100 new cases per week, with the total number of reported cases nearly 2,300 and total deaths over 1,400. In all, there have been 17,900 reported cases of Ebola in Africa and just under 6,400 deaths, according to the WHO.

There have been no new cases of Ebola in Mali or in the United States. Mali has had eight cases and six deaths, and the United States has had four cases and one death. Spain was declared Ebola free on Dec. 2.