This year’s 39th issue of Kodansha’s Morning magazine has announced that Yasuhiro Fukuda’s Cells at Work! Baby (Hataraku Saibō Baby) spin-off manga of Akane Shimizu’s Cells at Work! manga will return in the magazine’s next issue on September 2, 2021. The manga went on hiatus in February 2021. The hiatus was originally only scheduled to last for three months, but it ended up lasting half a year. The manga previously went on hiatus in June 2020.
The story of the manga is described as:
It’s no easy feat to keep a body happy and healthy, so even the newest cells have their tiny-winey, chubby-wubby hands full. Join these cute baby cells as they work hard within their newborn baby body, in this newest (literally) spin-off of Cells at Work.
Fukuda launched Cells at Work! Baby in Morning in October 2019. Kodansha Comics is publishing the manga in English.