ST. LOUIS — For the last two weeks, the Dodgers hadn’t felt good. Both at the plate and behind the scenes. Starting with last month’s trip to Denver, the club’s lineup had been in a rut, averaging barely four runs per game during a 5-9 skid that derailed their hot start to the season. Over that same period, a nasty bug had been going around the clubhouse, impacting up to 90% of the roster in the estimation of one team staff member. Dodgers reliever Tanner Scott helped the team snap a four-game losing streak Sunday. Getty Images Slumps and sicknesses, of course, are inevitable realities of a grueling six-month season. Rarely, however, do teams so severely endure both at the same time.…