Multiple Olympians have been forced to withdraw from their events after being hit with a crippling sickness, an infection that many are linking to the river Seine. Belgian athlete Claire Michel and two Swiss athletes withdrew from a mixed-team relay race leading on Monday. Michel’s own team has been quiet on her sickness, but according to Belgian media, the Olympian was stricken with a four-day infection of E. coli and had to receive treatment at a hospital in France. The athlete has since returned to the Olympic Village, but Belgium’s relay team was still forced to forfeit the race after Mich…