On August 18 KST, Pledis Entertainment stated, "Dino was confirmed to have tested positive for COVID-19 after conducting a PCR test in Los Angeles on August 16. Dino currently has mild sore throat symptoms and is in self-isolation, receiving treatment in a space separate from the rest of his members. Except for Dino, all of the Seventeen members tested negative on the PCR test."
Thus, Seventeen will be participating in the August 18 KST broadcast of 'Jimmy Kimmel Live!' and their concert in Houston as planned, without Dino.