The son of reality television star Kim Kardashian and rapper-husband Kanye West was rushed to the hospital on Dec. 28.
Saint, 2, was suffering from pneumonia, reports TMZ.
His parents stayed with him while he received treatment, sharing overnight duties. He was reportedly released on Dec. 30 in good condition.
The day before the medical emergency, Kim had attended Jennifer Lopez and Alex Rodriguez's Taco Wednesday party, the Daily Mail reports.
All was back to normal on New Year's Eve, as Kim and Kanye took selfies and posted them to Instagram, showing off her bleached hair while the couple partied at a club to ring in 2018.
In the final week of 2017, Kim shocked her fans by announcing that she would be try to keep social media usage down in 2018. "My New Year's resolution is to be on my phone less and be more in the moment," she said.
"My 2018 fitness goal is I plan to train really hard and be more consistent, five to six days a week weight training with Melissa."
Kim and Kanye will also be welcoming their third child via surrogate, as Kim reminded readers on her blog, where she wrote that she's looking forward to their "new baby girl coming!"
The accompanying image was from her cherry blossom-themed baby shower.
Kim was busy on Instagram during the final month of 2017, posting a series of Kardashian holiday photos, which she promptly deleted after Christmas, explaining on Twitter that doing so was "always the plan."
Fans were alarmed that sister Kylie Jenner was absent from the Christmas photo series.
Kylie has shunned the spotlight ever since rumors emerged that she is expecting her first child with rapper-boyfriend Travis Scott, reports Hollywood Life.
Many Kardashian fans thought Kylie's pregnancy would be finally be revealed in the Christmas photos, but they registered their disappointment on social media when their expectations were not fulfilled.
One fan summed it up with a particularly angry comment. "Kim f**king Kardashian really played the f**k out of us. Had us waiting 25 days to see if Kylie Jenner pregnant and she's not even in the damn Christmas card s**t. KYLIE B**h, IM COMING FOR YOU."
Sources: TMZ, Daily Mail, Hollywood Life / Featured Image: Pixabay / Embedded Images: Kim Kardashian and Kris Jenner/Instagram via Daily Mail