I forgot the protocol we put in place
after the great ear INFECTION of '06.
The Big Bang Theory Season 1, Episode 11
As long as it's not
a urinary tract INFECTION,
The Big Bang Theory Season 10, Episode 15
And snoring.
And that's probably just a sinus INFECTION.
The Big Bang Theory Season 1, Episode 2
...until William Shatner's
bladder INFECTION.
The Big Bang Theory Season 8, Episode 7
Oh, and two years ago
you had a persistent ear INFECTION.
The Big Bang Theory Season 6, Episode 3