Adama Sankoh, the Sierra Leone's last Ebola patient, was released from a treatment center Monday. She contracted the disease after her 23-year-old son succumbed to the disease late last month.

Although the Sierra Leone's last Ebola patient has been discharged, the WHO won’t declare it Ebola-free until six months after the last patient is discharged or buried. The period is double the duration of the maximum incubation period of the virus. Seems that WHO want to be ultra careful with regards to this lethal virus.

Ebola has caused the demise of nearly 4,000 people in Sierra Leone, one of the three West African countries that had faced the brunt of the deadly virus. Not a single new case of Ebola virus has emerged in the country since the beginning of August, but the country needs to wait for 42 more days before it’s declared Ebola free.

President of Sierra Leone Ernest Bai Koroma celebrated with Vanessa Wolfman, the local International Medical Corps' Emergency Medical Director, after the last Ebola patient in the country was finally discharged, and the 42-day countdown began for the country being declared free of the virus.

Bill Boyes, a spokesman for the Los Angeles-based group that cared for Sankoh, said everyone in the country wants this tormenting spell of the virus to get over.

“Although my child died of Ebola, I am very happy that I have survived”, Sankoh told the waiting crowd.