Encyclopedia SpongeBobia


Encyclopedia SpongeBobia
Encyclopedia SpongeBobia

"Kwarantined Krab" is a SpongeBob SquarePants episode from season 12. In this episode, the Krusty Krab goes under emergency quarantine, but no one knows who carries the mysterious illness of Clam Flu...



Kwarantined Krab 001

Before the quarantine.

The episode begins at the Krusty Krab, where Mr. Krabs is greeting his girls Mrs. Puff and Pearl. Meanwhile, Patrick is taking a long time to order something, much to Squidward's annoyance. SpongeBob says "hi" to Mrs. Puff, but Mrs. Puff reminds him that they should pretend not to know each other when they are not at school. SpongeBob delivers two Krabby Patties to Mrs. Puff and Pearl by spitting them out of his eyes. Out of nowhere, the local health inspector appears. He pulls a device and scans the room, declaring the Krusty Krab to be a health hazard. He suspects that someone in the restaurant has a case of the disease known as "Clam Flu" and puts the restaurant under quarantine, locking everyone inside.

This causes everyone except for SpongeBob to run around, screaming and panicking. Patrick then asks what a quarantine actually is, and SpongeBob replies that it is like a "mandatory sleepover." Squidward debunks this, saying that a quarantine is when a group of people are forced to be locked in a room with a sick person, until eventually everyone gets sick. Overhearing everything that has just happened and not wanting to get sick himself, Plankton comes out of a nearby soda cup, saying that he is abandoning "operation soda-jerk." He escapes via the restaurant's funnel, but is immediately lasered by a hazmat fish, prompting everyone else to stay inside.

Pearl complains, but Mr. Krabs states that back in his navy days, when one of his fellow sailors got sick, they would isolate the "sicko" and lock them in the freezer so that the others can enjoy their good health. When Mrs. Puff asks if they let the sicko out of the freezer once he got better, Mr. Krabs hesitates and says that somebody probably let them out eventually, which concerns Mrs. Puff. Mr. Krabs asks if anyone is feeling sick, to which nobody responds, prompting him to use a pair of tongs as a threat. This causes Squidward to freak out and bump into a table, launching a pepper shaker into the air and into SpongeBob's nose, causing him to sneeze. Everyone assumes that SpongeBob has the disease, even though he clearly doesn't.

SpongeBob states that he will go into the freezer willingly, despite not feeling sick. He tries to have an emotional speech, but he is cut short when Mr. Krabs slams the door in his face. It is then revealed that SpongeBob is having fun in the freezer, sledding on a mountain of snow and eating ice cream. Everyone is relieved as they think the worst of the quarantine is over. Patrick looks over and notices that SpongeBob has an ice cream cone, making him interested. Patrick pretends to be sick by rubbing relish all over himself. This causes everyone to freak out, and Patrick ends up getting locked in the freezer. SpongeBob and Patrick end up having a snowball fight with chocolate ice cream.

Kwarantined Krab 123

Stuck in the freezer.

Mr. Krabs, Squidward, Mrs. Puff, and Pearl are sitting at a table, paranoid if anyone else has the disease. Squidward itches his arm, and Pearl accuses him of having the Clam Flu. Mr. Krabs throws Squidward in the freezer. Mrs. Puff then yawns, making Mr. Krabs freak out, and he locks her in the freezer as well. Pearl remembers that she still had money left over from last time she went to the mall. This makes Mr. Krabs think that the flu has poisoned Pearl's mind, and he locks her in the freezer too. In the freezer, everyone meets inside an igloo, and Squidward finds out that nobody in the freezer is actually sick. Mrs. Puff then deduce that Mr. Krabs is the one with the sickness, causing Pearl to cry. Squidward decides that the only option is to break out of the freezer and lock Mr. Krabs inside. Everyone agrees, except for SpongeBob, who is reluctant at first. Squidward convinces him by explaining that he cannot make Krabby Patties if he is locked in the freezer. And SpongeBob accepts it as he puts his sunglasses on to put the crab on ice.

Everyone busts out of the freezer, much to Mr. Krabs' surprise. Patrick tries to attack him, but Krabs shrinks himself down and hides under the grill. SpongeBob chases Mr. Krabs under the grill and tries to convince him to go willingly, but Mr. Krabs refuses and goes down a pipe leading to the grease trap. SpongeBob comes out from under the grill, covered in mold and unaware of what to do. Squidward then says somebody has to go down there and get Mr. Krabs out before he escapes into the sewers and infects the whole town. Patrick lifts up the grill and shoves Squidward through the pipe, not knowing there was a hatch that leads down there, covering him in grease. After seeing Squidward and had sicko germs from Squidward's sneeze, Mr. Krabs escapes the grease trap and runs into the dining room. Pearl gives chase, but Mr. Krabs gets stuck in her blowhole. Pearl sneezes him out, but he loses his shirt in the processes, causing her blowhole to get plugged up. Patrick corners Mr. Krabs, and they begin to fight. During the fight, Mr. Krabs throws Patrick into the broom closet, covering him in dust. Patrick grabs Mr. Krabs with his tongue and throws him to Mrs. Puff, who catches him in a garbage can. She puffs up, causing trash to fall all over her.

Later that night after the battlefield, the health inspector returns to the Krusty Krab and goes inside. He says that he made a mistake (it is surprisingly revealed that he had been holding his tracking equipment upside-down when he came by earlier yesterday) meaning nobody actually had Clam Flu. However, he finds out that everyone now has a different disease, and Mr. Krabs has a combination of all five diseases due to the fight they had earlier of a failure plan to send him back to the freezer. The health inspector panics and runs out of the restaurant, yelling that everyone is actually sick and declares an "Ultra-Mega Quarantine." A team of Hazmat units lock the Krusty Krab inside of a crate and airlift it over to the Chum Bucket, where it is dropped. Plankton is heard begging the gang to stay away so he does not get sick, only to end up sneezing; revealing that he was the one with Clam Flu the whole time as the episode ends.


The episode was confirmed by Vincent Waller on June 23, 2019.[1]

Promotional art[]

  • By the official SpongeBob social media accounts.[2]


More storyboards from this episode were posted on the official SpongeBob Twitter account on October 15, 2022.[3]


 ) Production music
 ) Original music
 ) SpongeBob music

  Drunken Sailor - Nicolas Carr [Title card]
  Cheap and Frozen - Michael Bolger, Nicolas Carr [Opening at the Krusty Krab]
  ? [SpongeBob laughs]
  Crime Scene - Frederick Charrosin [Health inspector enters the Krusty Krab]
  Crime And Danger Sign #2 - Hans Conzelmann, Delle Haensch [Health inspector says someone in the Krusty Krab is infected with the contagious clam flu and puts the restaurant under quarantine]
  Crime And Danger Sign #10 - Hans Conzelmann, Delle Haensch [Health inspector puts the Krusty Krab on lockdown]
  Desperate Escape - Kenneth Essex [Krabs, Mrs. Puff, Pearl, Squidward and Patrick panic at the Krusty Krab]
  Vibe Q Sting - Nicolas Carr ["Wait, w-what's a-a... a quarter bean?"]
  Daisy Chain - Harold Smart ["Sleepover! Sleepover...!"]
  Silly Bob Conversation 2 - Nicolas Carr, Barry Anthony ["A quarantine means you're locked in here with a sick person, until we're all sick and miserable."]
  Dramatic Cue (D) - Ronald Hanmer [Plankton gets burned]
  Destination Unknown - Gregor Narholz [Plankton was burnt by a robot]
  Dramatic Cue (E) - Ronald Hanmer [Plankton moans in ashes]
  Hot Steel and Slide Licks 8B - Jeremy Wakefield ["But I have to cheer at the big game tomorrow!"]
  Pirate's Opus - Michael Bolger, Nicolas Carr [Krabs explains what he used to do with a sick person at the old navy days]
  Whats This Sting - Nicolas Carr ["You let them out of the freezer once they were better. Right?"]
  Humorous Conversation Full Mix - Nicolas Carr, Barry Anthony ["Uh? I suppose someone let 'em out, eventually."]
  Dramatic Cue (E) - Ronald Hanmer [Squidward gets nervous]
  Dramatic Cue (H) - Ronald Hanmer [Squidward, Patrick, Mrs. Puff, Pearl and Krabs think SpongeBob is the sick person]
  Theme For Two Lovers - Kenny Salmon ["I'll go. I feel fine, but... I don't wanna risk infecting my friends."]
  Hot Steel and Slide Licks 7L - Jeremy Wakefield [Squidward screams hysterically and sprays his mouth with a spray sanitizer]
  Theme For Two Lovers - Kenny Salmon ["All I ask is that you remember me and who I was, full of live..."]
  Six Powerful Cues (B) - Wilfred Burns [SpongeBob screaming from inside the freezer]
  Jingle Bells 2 - Sammy Burdson, John Fiddy [SpongeBob skating inside the freezer]
  Drunken Sailor Solo Accordion - Nicolas Carr ["Well, problem solved! Now let's seat back and wait for the old clear."]
  Alone And Lost - Norman Dane [Patrick sees SpongeBob eating ice cream inside the freezer]
  Dramatic Episode 1 - Kurt Rehfeld [Patrick pretends to have the clam flu to reunite with SpongeBob in the freezer]
  Jingle Bells 2 - Sammy Burdson, John Fiddy [SpongeBob and Patrick having an ice cream fight inside the freezer]
  Unease - Dick Walter ["Ah... We'll just have to be more vigilant now, anyone could be a carrier."]
  Dramatic Cue (B) - Ronald Hanmer [Pearl and Krabs think Squidward is a carrier of the clam flu and ends up in the freezer]
  Misty Menace - Max Saunders [Mrs. Puff yawns]
  Terror - Alan Braden [Krabs launches Mrs. Puff into the freezer]
  Hippomania - John Fox, Mac Prindy ["At least we know we're saved now, me baby beluga?"]
  Finger of Fear - Fredric Bayco [Krabs throws Pearl into the freezer]
  Jingle Bells 2 - Sammy Burdson, John Fiddy [Igloo inside the freezer]
  The Fruitcake Vendor 1 - Nicolas Carr, Barry Anthony ["Nobody in this freezer is actually sick?"]
  The Killing Ground (A) - Richard Harvey ["Well, if no one's sick in here, then the sick person must be..."]
  Misty Menace - Max Saunders ["I say we bust out of here, grab Krabs and lock him away!"]
  Detective Hiroshi - Nicolas Carr [SpongeBob, Patrick, Squidward, Mrs. Puff, and Pearl escape from the freezer]
  Paroxysms I - Trevor Duncan ["You psychos are supposed to be in the freezer!"]
  Spongemonger - Sage Guyton, Jeremy Wakefield [SpongeBob chases Krabs under the grill so he can get him into the freezer]
  Rescue - Cecil Milner ["He's in the grease trap!"]
  Slide Whistle Stooges Theme - Nicolas Carr, Sage Guyton, Jeremy Wakefield [Patrick tries to get Squidward into the grease trap]
  Rescue - Cecil Milner [Squidward spits grease to Krabs at the grease trap]
  Slide Whistle Stooges Theme - Nicolas Carr, Sage Guyton, Jeremy Wakefield [Pearl, Patrick, and Mrs. Puff trying to catch Krabs to lock him into the freezer]
  Trap Door - David Lindup [That night]
  Scorched Earth - Trevor Duncan [Everyone is sick for real]
  Destination Unknown - Gregor Narholz [The Krusty Krab gets put on "ultra mega" quarantine]
  Drunken Sailor - Nicolas Carr [Ending]


  • This episode is available on the SpongeBob SquarePants Vol. 22 digital release.



  • This episode was originally going to be titled "Kwarantine Krab"[4] and "The Kwarantined Krab."[5] The only difference is that the word "The" was removed from the finalized title.
  • This episode and "My Two Krabses" were originally scheduled to premiere on April 4, 2020 in the United States, but both were later pulled because of the COVID-19 pandemic.
  • This episode was paired up with "There Will Be Grease" during the original American airing,[6][7] but has since been re-airing with "Who R Zoo?" in later reruns.[8]
  • In UK and Ireland airings of this episode, the scene where Squidward hysterically sprays his mouth with a spray sanitizer is cut.[9]
  • List of the people thrown into the freezer and the reason why:
    • SpongeBob: Squidward accidentally knocked pepper into SpongeBob's nose, causing him to sneeze and get thrown in.
    • Patrick: Witnesses SpongeBob having ice cream in the freezer, so he pretends to be sick by rubbing relish on his face.
    • Squidward: Scratches his arm and gets accused by Pearl of being sick.
    • Mrs. Puff: Yawns and gets accused by Mr. Krabs of being sick.
    • Pearl: She doesn't spend all the money she had and gives Mr. Krabs the change, making him believe the Clam Flu has poisoned her mind and he throws her in the freezer too.
  • The scene where SpongeBob puts on his sunglasses and says, "All right, let's put this crab on ice" sounds similar to the dream manager SpongeBob had in the opening of the first movie.
  • List of diseases everyone caught by the end of the episode, and how they caught them:
    • Squidward: Grease Gout: Getting covered in the grease in the grease trap in an attempt to apprehend Mr. Krabs.
    • SpongeBob: Moldy Measles: Following Mr. Krabs under the grill, getting covered in the grime present.
    • Mrs. Puff: Trash Trichinosis: Getting covered in the trash and the trash can itself she used to briefly capture Mr. Krabs.
    • Patrick: Dust Bunny Bronchitis: Getting smashed into the broom closet, getting covered in dust in the process.
    • Pearl: Polyester Plague: Getting Mr. Krabs' shirt caught in her blowhole.
    • Mr. Krabs: The Whole Shebang: Retreating under the grill, getting covered in the grime present, getting into the grease trap and getting covered in its grease, getting his shirt caught in Pearl's blowhole, getting yanked into the broom closet by Patrick, and getting thrown into a trash can full of trash. The disease is primarily a combination of all the respective diseases that Squidward, SpongeBob, Mrs. Puff, Patrick, and Pearl caught.
  • The final frame from this episode was accidentally revealed at the end of the premiere of "Who R Zoo?" in the UK and Ireland airing.
  • This is the last episode to be in PAL pitch in the UK and Ireland.
  • This is the first episode since 2006 to premiere in Germany on Super RTL instead of Nick Germany or Nicktoons Germany.
  • This is the second time an episode from a season is excluded from a season DVD set, with the first being "Help Wanted," from The Complete 1st Season DVD.
  • In broadcast order, this was the third season 12 episode to premiere in the United States a year or longer after its sister episode premiered. The first was "Pineapple RV" and second was "My Two Krabses."
    • In packaging order, this was the fourth and final season 12 episode to premiere a year or longer after its sister episode premiered.
    • This is also the seventh episode overall to premiere in the United States a year or longer after its sister episode premiered. The first is "Gary Takes a Bath," the second is "Goo Goo Gas," the third is "Yeti Krabs," the fourth is "Pineapple RV," the fifth is "My Two Krabses," and the sixth is "Hiccup Plague."
      • This was the second episode to premiere a full two years after its sister episode premiered. The first was "Gary Takes a Bath."
        • The reason this episode was delayed was most likely due to similarities with the COVID-19 pandemic[10][11] despite the fact that this episode was produced before the pandemic began.
  • This is the only season 12 episode not featured on The Complete Twelfth Season DVD, due to its plot unintentionally being similar to the COVID-19 pandemic.[12][13] A Nickelodeon representative later told the IGN website on March 27, 2021 that it decided not to air this episode in the United States throughout 2020 and 2021 or other territories where it has not yet aired over "sensitivities surrounding the global, real-world pandemic."[14] Vincent Waller on Twitter stated that the episode was not permanently shelved but was on hold until the pandemic was no longer a concern.[15][16]
  • This is the last season 12 episode in broadcast order.
  • Before its premiere date in the United States, a clip from this episode was used in a promo that aired on Nickelodeon Australia and New Zealand on February 24, 2020.[17]
    • A clip from this episode was used in a video called "Top 5 Moments: Patrick," released on Mundonick.com in Brazil[18] on March 5, 2020, and in Mexico[19] on March 9, 2020.
    • A clip from this episode was used in a video called "Top 5 Funniest Moments from New Episodes" video on the official Nick Poland account on November 22, 2020,[20] Russia and Asia on November 24,[21][22] Hungary on November 29,[23] and Turkey on December 20.[24]
    • A clip from this episode was used in a video called "SpongeBob's Scariest Sea Monsters 😈👻🍍" uploaded by the SpongeBob SquarePants Official YouTube channel on October 16, 2021.[25]

Dub facts[]

  • This episode was initially set to premiere in Russia on February 28, 2020 but was pulled and replaced with "Biddy Sitting."



Mr. Krabs' invisible shirt.

  • When Mr. Krabs says, "Sit tight, lunch is almost ready!," his blue shirt is invisible and only its sleeves are visible for one frame.

Mr. Krabs' clear teeth.

  • During one frame where Mrs. Puff catches Mr. Krabs in a trash can, the latter's teeth color turns transparent.
  • Before Pearl runs to Mr. Krabs and breaks the invitation window her soul hole disappears for one frame. In that scene, SpongeBob's eyelashes are missing. While Mr. Krabs twists Patrick with Patrick's tongue, SpongeBob's pupils are white for a few frames.



  1. ^ Vincent Waller on Twitter - "Oui"
  2. ^ SpongeBob on Instagram - "Now and Then..."
  3. ^ SpongeBob on Twitter - "Quite disturbing, even as a sketch..."
  4. ^ https://x.com/TyHooper7/status/1142554666502410243?t=Yw4U6Z05CMRxrnPCF0qXMw&s=19
  5. ^ https://www.fernsehserien.de/spongebob-schwammkopf/folgen/12x22b-krosse-quarantaene-1358316
  6. ^ SpongeBob SquarePants Episode Listings - The Futon Critic
  7. ^ Nickstory - April 29, 2022
  8. ^ Nickstory - May 14, 2022
  9. ^ https://www.youtube.com/watch?v=29f7bf8by5A
  10. ^ https://twitter.com/MancieRaines/status/1336801846996815873
  11. ^ https://twitter.com/VincentWaller72/status/1403009628057702409
  12. ^ https://www.twitter.com/VincentWaller72/status/1336460910144102400
  13. ^ https://twitter.com/VincentWaller72/status/1351562478585450496
  14. ^ https://www.ign.com/articles/spongebob-squarepants-episodes-pulled-over-storyline-concerns
  15. ^ https://twitter.com/VincentWaller72/status/1375810911248687110
  16. ^ https://twitter.com/VincentWaller72/status/1375812924690735104
  17. ^ https://mega.nz/file/wXpxEZxS#PNQSQhA3mxErOKSIZsC-zyULjpw2fjBc9Gi8K7tZGQg
  18. ^ https://www.youtube.com/watch?v=qDMgtChcWAM
  19. ^ https://www.youtube.com/watch?v=tnQ26V_iBF0
  20. ^ https://www.facebook.com/nickelodeonpolska/videos/679707496067666/
  21. ^ https://www.facebook.com/NickelodeonRussia/videos/119873583122539/
  22. ^ https://www.facebook.com/nickasia/videos/392007905316453/
  23. ^ https://www.facebook.com/NickelodeonHungary/videos/3961008360594251/
  24. ^ https://www.facebook.com/nickelodeonturkey/videos/196510002138774/
  25. ^ https://www.youtube.com/watch?v=5U_CEYEnZbM&t=333s