The number of Ebola cases in Sierra Leone has declined significantly, says Northland medical officer of health Clair Mills, who is back from spending three months working in the Ebola-ravaged west African country.
Dr Mills added there was much still to do in fighting the killer disease.
![Dr Clair Mills](https://www.nzherald.co.nz/resizer/v2/GJVSQM6VYKNXLISC4IKQLGGETU.jpg?auth=4fd6f24606ed6cc2d28d75726127510ec747d2925454fd63961acc890d6b0b57&width=16&height=24&quality=70&smart=true)
She left Whangarei for Sierra Leone in November to take on the job of medical co-ordinator for Mdecins Sans Frontires (Doctors Without Borders), which ran four Ebola treatment centres in Sierra Leone, as well as training staff from other organisations. It also ran surveillance and health promotion teams in the capital, Freetown.
Dr Mills has worked for various humanitarian organisations for more than 10 years. She said the work in the Ebola treatment centres was physically and emotionally exhausting.