[Nigeria Health Watch] In continuation of U.S. Government support for Nigeria's conduct of a household survey that determines the extent of COVID-19 transmission in the country, a new study by a team of U.S. and Nigerian scientists has reaffirmed the importance of validating SARS-CoV-2 assays using locally obtained samples to assess COVID-19 exposure in the population. Therefore, the researchers conducted a laboratory-based investigation to validate SARS-CoV-2 assays using samples from COVID-19 survivors and other archived pre-p
