Two-time world U20 medallist suspended for use of masking agent

Uganda’s Prisca Chesang, 20, tested positive for furosemide at the 2023 World Road Running Championships

Doping agencies on high alert as worm blood doping hits athletic circles

A new form of doping that extracts blood from lugworms can carry 40 times more oxygen than human hemoglobin and can have an immediate impact on the body

Boston Marathon bronze medallist provisionally suspended for doping

Kenneth Kipkemoi, third-place finisher at the 2019 Boston Marathon, has tested positive for a banned substance