"Our daughter brought us covid (even though we specifically asked her not to)," Kimmel wrote.
Kimmel mentioned he and his household are "feeling fine" and that he's "double vaxxed and boosted."
Covid-19 instances in Los Angeles County, the place Jimmy Kimmel Live! is taped, have seen a rise fueled by the B.A.2 subvariant, however hospitalizations attributed to the virus stay regular.
Birbiglia, a humorist, will fill in for Kimmel, greeting visitors Tom Cruise and fellow comedian, Iliza Shlesinger.
"I must be the first person to ever deplane a Southwest Airlines flight and find out they're guest-hosting a late night talk show," quipped Birbiglia. "Sending love to the Kimmels."