Guinea which was so long at the epicenter of the world's worst outbreak of the Ebola virus has been declared free of the virus by the World Health Organisation (WHO) on Tuesday .This is the second such declaration from the WHO. The proclamation was made because the person with Guinea's last confirmed case tested negative for the second time more than 42 days ago. Guinea will now enter a 90-day period of heightened surveillance to make sure of the identification of any new cases before they spread to others. It is no doubt a great achievement by Guinea. However, strict surveillance should go on.