CDC released an article today in Pediatrics about acute flaccid myelitis activity in the United States from 2015 to 2017

Key Findings

  • From 2015 to 2017, 193 patients aged 21 and younger in 41 states were confirmed to have AFM.
  • Most cases (116) occurred between August and November, with the largest number of cases (143) occurring in 2016.
  • The median age of cases was 6 years.
  • Strong evidence pointed to viruses, including enteroviruses, as having a role in these AFM cases.
  • Most cases (79%) had a respiratory illness or fever less than a week before weakness onset.
  • One CSF specimen tested positive for coxsackievirus A16; finding virus in the spinal fluid continues to be challenging.
  • Close to 30% of respiratory specimens tested positive for enteroviruses or rhinoviruses.
  • No single pathogen was identified as the primary cause of AFM