Days after winning the Truck Series race at Dover, the 41-year-old NASCAR star suffered from a sudden decline, showing how even a small illness like pneumonia could be fatal.
'You never know when the last one is!'- he shared after giving the crowd his signature bow and taking the checkered flag one last time earlier this month.
Kyle Busch's family shared how he suffered from severe pneumonia that progressed into sepsis, which led to his sudden death.
Experts say that sepsis is far more common than most people think, with at least 1.7 million adults and more than 18,000 children in the US developing sepsis.
On average, 1 in 3 adults who lose their lives in hospitals had sepsis while getting admitted.