When I was in school 20-odd years ago, historians were still unsure about whether or not the black death traveled through Sub-Saharan Africa to any large degree, in large part because the vector (merchant ships) didn't visit many Sub-Saharan African ports and historical records of the area during the Middle Ages were few and far between.
Now that we have a few more histories of individual Sub-Saharan African fiefdoms through the Middle Ages, has anything more been unearthed on whether the bubonic plague affected Sub-Saharan Africa to any significant degree?