For the COVID-19 infection tables, English Wikipedia wants to put the totals at the top instead of at the bottom. This isn't really supported by jquery.tablesorter, so they implemented an awkward workaround where the totals are part of the header. This has the confusing side effect of putting the sort buttons on the totals instead of the real headers. Several other wikis have now followed this pattern as well: ko, ru, tl, vi, etc. Here's a screenshot:
It would be nice if jquery.tablesorter added handling for a "sorttop" class similar to the existing "sortbottom" class, so that this could be better accommodated. The "sorttop" row would stick to the top, but not be assigned the sort buttons.