well, Brazil has also a good male fencer (Foil) in Guilherme Toldo, who also made the top 10 in Rio and in a few world cup events...
however, on a given day there are so many athletes and Countries that could win a medal, especially in the Epee events...
other Countries with a good overall team? Japan first of all
then Poland and Estonia have good chances in the women's team epee...
Netherlands, Denmark, Cuba and Venezuela in the men's Epee...
Egypt in the men's Foil, Tunisia in all the women's events...
Canada also have some very good female athletes (and yesterday they were also close to a surprising medal in the men's Sabre)...
the same Argentina until 20 years ago couln't even imagine to qualify an athelte for the main draw (last 64) of a world championship...now you have at least 3 or 4 fencers regularly doing the main draw at the global events...
a few years ago, you could cry of joy if you had 1 or 2 Nations other than ITA, FRA, HUN, URS and the 2 GER teams in the medal table (actually, in the top 10 of each competition) and 30 Nations at the start of the world champs...nowadays, there are at least 20/25 Countries who have at least an outside chance to win a medal and more than 100 Nations starting at the world champs...yes, Fencing has really grown up a lot in the last 20 years...