Geneva: The World Health Organization (WHO) on Thursday declared Liberia free of ebola virus transmission.
The WHO said in a statement that Liberia's ability to effectively respond to the ebola outbreak was due to intensified vigilance and rapid response by the government and multiple partners, Xinhua news agency reported.
Liberia now enters a 90-day period of heightened surveillance.
In Liberia, transmission had been declared over on May 9, but the disease re-emerged on June 29 and six additional cases were identified.
According to WHO's latest ebola situation reports, there were three confirmed cases reported last week in Guinea while Sierra Leone found a new case over the past two weeks.
As of August 30, there have been 28,073 reported confirmed, probable and suspected cases of ebola in Guinea, Liberia and Sierra Leone, with 11,290 reported deaths.