The timer is ticking as Guinea moves towards going 42 days without a new case of Ebola! Today the last patient with Ebola tested negative. The WHO's criteria for meeting "zero" cases of the Ebola Virus in West Africa will be considered met after 42 days have passed since the last confirmed case has tested negative twice for the virus taken from the patient's blood samples residing in Guinea, Liberia or Sierra Leone. After the 42-day period has elapsed, each country should maintain a system of heightened surveillance for a further 90 days, and ensure ongoing EVD surveillance and notification thereafter. The end of the Ebola outbreak in the West African sub-region will be declared when the 42-day period has elapsed in the last affected country.
Sierra Leone was declared Ebola Free on November 7, 2015, and Liberia on September 3, 2015. Interesting to note that Guinea's last infected patient acquired the virus from her mother in-utero reports USATODAY. She is the first infant born with the deadly virus to have survived.