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Influenza and Children with Neurologic Disorders
The Centers for Disease Control and Prevention (CDC) has published a study in the journal Pediatrics on the effects of influenza in children with neurologic disorders. The study compared clinical outcomes during and after influenza, like hospitalization and death, between children with and without neurologic disorders. For the this study, researchers looked at the medical records of reported pediatric deaths between April 15 and September 30 of 2009, during the H1N1 influenza pandemic. Of the 336 pediatric deaths associated with influenza that were reviewed in the study, 227 (68%) “had at least 1 underlying condition that conferred an increased risk of complications of influenza.” Of those 227, 164 (64%) had a neurologic disorder.
It has long been known that people of any age with a neurologic condition are more likely to suffer severe consequences from a respiratory disease. For example, people with cerebral palsy -- or similar conditions -- may have difficulty coughing out lung irritants, breathing deeply, or otherwise clearing their lungs. People with a severe neurologic condition are more likely to be institutionalized, thus being exposed to other residents or patients with infectious diseases. Even if the neurologic disorder is not one that prevents normal body functions, the person with the disorder may not be able to understand and follow good hygiene practices like washing their hands when necessary.
In their press release, CDC investigators also point out that “seventy-five percent of children with a neurologic condition who died from 2009 H1N1 influenza-related infection also had an additional high risk condition that increased their risk for influenza complications, such as a pulmonary disorder, metabolic disorder, heart disease or a chromosomal abnormality.” Also, only 23% of children in the study who had neurologic disorders had received the seasonal influenza vaccine. Only 3% had received the recommended dose of 2009 H1N1 vaccine.
These findings underscore the need for influenza immunization in all children and especially in children with conditions that put them at high risk for severe complications and people taking care of them. In some cases, the underlying medical condition in high-risk children makes the influenza vaccine contraindicated. So it is imperative that children who cannot be immunized are protected from influenza by herd immunity.
In order to increase awareness in the public of the need to immunize and prevent influenza, CDC, the American Academy of Pediatrics, Families Fighting Flu, and Family Voices have partnered to inform the public on the risks of influenza. Depending on the severity of the influenza season, CDC reports that between 3,000 and 49,000 people die from influenza or its complications.
Influenza vaccine in the United States is currently recommended for everyone older than six months. There are two types of influenza vaccine, an injectable vaccine that contains dead influenza viruses and a nasal spray vaccine that contains live-attenuated viruses. Your healthcare provider is the best person to discuss the benefits of influenza immunization with you.
 "Neurologic Disorders Among Pediatric Deaths Associated with the ..." 2012. 29 Aug. 2012 <http://pediatrics.aappublications.org/content/early/2012/08/24/peds.2011-3343.abstract?sid=6d0248fe-576c-4469-87ef-3ce4e7cd3d07>
 "Hospital-Acquired and Institution-Acquired Pneumonia: Pneumonia ..." 2011. 29 Aug. 2012 <http://www.merckmanuals.com/home/lung_and_airway_disorders/pneumonia/hospital-acquired_and_institution-acquired_pneumonia.html
 "Seasonal flu-related deaths - Centers for Disease Control and ..." 2009. 29 Aug. 2012 <http://www.cdc.gov/flu/about/disease/us_flu-related_deaths.htm>