Here in Minnesota, the Department of Health is investigating six cases of AFM.
The MDH says the case is now being reviewed, and did not provide information regarding where in the state this particular case was diagnosed, or whether or not the child is in the hospital.
AFM is a condition in which the gray matter of the spinal cord becomes damaged, leading to muscle weakness and paralysis in one or multiple limbs.
Dozens of children across the United States have developed a rare polio-like illness, but the reason for this spike in cases remains a mystery, according to health officials.
CNN has reported that this year, more than half of all USA states have had confirmed or possible cases, including North and SC.More news: Teslaquila Could Pack Some Serious Voltage - If Musk’s Not Pulling Our Chain
"I am frustrated that despite all of our efforts, we haven't been able to identify the cause of this mystery illness", said Dr. Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention. This year's numbers are similar to 2016 and 2014.
The most severe symptom of AFM is trouble breathing.
The CDC also does not yet know who may be at a higher risk for developing AFM or the long-term consequences of the condition. One child died from AFM in 2017.
In a few cases, it appears that the illnesses were linked to viruses, including enterovirus.
The agency knows that poliovirus is not the cause of these cases because the CDC has tested every single stool specimen from patients and none have tested positive for poliovirus. "And certainly after three cycles of this, when we've looked through all the normal agents, we're looking beyond that to see if there are things beyond normal infectious diseases that could cause this", said Messonnier.More news: Spider-Man suits revealed for first DLC drop The Heist
That's up from 22 people who were said to have it in 2015.
Some patients recover quickly, while others experience paralysis and require ongoing care.
On Monday, CNN reached out to health departments in every state and received responses from 48 states plus the District of Columbia.
In 2014 the CDC said there was a spike in the AFM virus, with 120 people afflicted with it from August to December of that year in 34 states.
"As we work to better understand what's causing AFM, parents can help protect their children by washing your hands, staying up to date on recommended vaccines and using insect repellent to prevent mosquito bites", Messonnier said.More news: The Flash Movie Release Date Pushed Back as Production Delays
It's possible that some milder cases haven't been reported by doctors to their state health department or the CDC, but Messonnier believes that number would be small.