Molecular characterization of haemagglutinin genes of influenza B viruses circulating in Ghana during 2016 and 2017. oleh Alhassan Mohammed Yakubu, Nii Ayite Aryee, Evelyn Yayra Bonney, Erasmus Nikoi Kotey, Joseph Humphrey Kofi Bonney, Michael R Wiley, Catherine B Pratt, Grace Korkor Ababio, Shieley Nimo-Paintsil, Naiki Puplampu, Seth Attoh, Raymond D Fatchu, Edward Owusu Nyarko, Anne Fox, Chaselynn M Watters, Terrel Sanders, Andrew G Letizia, William Kwabena Ampofo