Barely three months after celebrating the end of an Ebola outbreak in Guinea, two new cases have been confirmed in the country.
Three other members of the family are suspected to have recently died from the virus.
The cases were reported in the southern region of Nzerekore, where the outbreak began in December 2013.
The Ebola outbreak killed more than 11,300 people – mostly in Guinea and its neighbours Sierra Leone and Liberia.
The new cases were reported by the World Health Organization (WHO) hours after it declared the latest Ebola flare-up to be over in Sierra Leone.
The WHO has warned that sporadic cases of Ebola are likely to re-emerge as the virus can linger on in body fluids of some survivors.