To gain more data, the CDC is expanding their New Vaccine Surveillance Network, which looks for and monitors cases of respiratory and gastrointestinal diseases around the country, to track AFM. “We’ve overlayed AFM surveillance, and it’s active surveillance, so people at hospitals are actively looking for it. The idea is to correlate that information with circulating respiratory and GI pathogens,” Routh says. The agency is also collaborating with the National Institutes of Health to run a study that will follow patients with AFM from the time of diagnosis for a year, to better understand how the disease progresses. “Hopefully in the next year we’ll have more data to offer some answers,” she says.