Multisystem inflammatory syndrome (MIS-C), in other words known as a pediatric multisystem inflammatory syndrome because it usually happens in children than older people.
This syndrome is actually a post-infectious complication of covid-19. Thus, we can see the syndrome develop after several weeks when kids get infected with the virus.
Besides that, Sick-Samuels says that MIS-C have signs and symptoms similar to toxic shock syndrome called Kawasaki disease, which both cause inflammation throughout the body such as the heart, lungs, kidneys, brain, skin, eyes, or gastrointestinal organs.
Moreover, the symptoms can be milder or very serious. As a result, require urgent medical care.