The Transmission Chain Analysis of 2014-2015 Ebola Virus Disease Outbreak in Koinadugu District, Sierra Leone: An Observational Study.

Introduction: Sierra Leone experienced an unprecedented Ebola virus disease (EVD) outbreak in all its districts. Koinadugu District was the last to report an EVD case. Several outbreak response strategies were implemented.

Seroprevalence of Hepatitis B Infection in Nigeria: A National Survey.

Hepatitis B virus (HBV) infection accounts for about 1 million deaths worldwide annually. This study was to determine the prevalence, distribution of HBV, and factors associated with infection in an apparently healthy population in Nigeria. A cross-sectional study among the general population was conducted employing a multistage sampling technique.