FREETOWN, Sept. 27 (Xinhua) -- Sierra Leone on Sunday began another 42-day Ebola countdown after the last two Ebola patients were discharged from the Mathene Treatment Centre in the northern city of Makeni, local officials said.

According to the local district Ebola response officials who declined to be named, "all people that were in quarantine homes in the Kambia and Bombali Districts have ended their 21 day incubation period and have been released".

Sierra Leone's first countdown was interrupted about a month ago when a 67 year-old woman died from Ebola in the Kambia District on August 28 and followed by the death of a 16-year-old school girl in the Bombali District.

In addition, the National Ebola Response Centre (NERC) offered a reward of five million leones for any information leading to the tracing of Kadiatu Kamara, who is regarded as a high risk as she was known to be in close contact with the woman who died in Kambia.

"If anyone has any information on Kadiatu Kamara, please inform the health authorities or the police as it is important we find her as quickly as possible," the announcement stressed.

"She is not a criminal but we want her to give herself up so that we can check her status," said NERC's Director of Strategic Communication, Sidi Yaya Tunis.

Kadiatu disappeared 28 days ago.