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Children with Neurologic Disorders at High Risk of Death From Flu


A disproportionately high number of children with neurologic disorders died from influenza-related complications during the 2009 H1N1 pandemic, according to a study by scientists with the Centers for Disease Control and Prevention. Since the H1N1 pandemic, children with neurologic conditions continue to represent a disproportionate number of influenza-associated pediatric deaths. The report in the Journal Pediatrics underscores the importance of influenza vaccination to protect children with neurologic disorders. CDC is joining with the American Academy of Pediatrics, Families Fighting Flu and Family Voices to spread the message about the importance of influenza vaccination and treatment in these children.

 

The Journal Pediatrics study looked at influenza-related deaths in children during the 2009 H1N1 pandemic based on data submitted to the CDC from state and local health departments. The number of pediatric deaths associated with 2009 H1N1 virus infection reported to the CDC during the pandemic was more than five times the median number of pediatric deaths that were reported in the five flu seasons prior to the pandemic. Sixty-eight percent of those deaths occurred in children with underlying medical conditions that increase the risk of serious flu complications.

 

Of the 336 children (defined as people younger than 18 years) with information available on underlying medical conditions who were reported to have died from 2009 H1N1 flu-associated causes, 227 had one or more underlying health conditions. One hundred forty-six children (64 percent) had a neurologic disorder such as cerebral palsy, intellectual disability, or epilepsy. Of the children with neurologic disorders for whom information on vaccination status was available, only 21 (23 percent) had received the seasonal influenza vaccine and 2 (3 percent) were fully vaccinated for 2009 H1N1.

 

“We’ve known for some time that certain neurologic conditions can put children at high risk for serious complications from influenza,” said Dr. Lyn Finelli, chief of the surveillance and outbreak response team in the CDC’s Influenza Division. “However, the high percentage of pediatric deaths associated with neurologic disorders that occurred during the 2009 H1N1 pandemic was a somber reminder of the harm that flu can cause to children with neurologic and neurodevelopmental disorders.”

 

“Flu is particularly dangerous for people who may have trouble with muscle function, lung function or difficulty coughing, swallowing or clearing fluids from their airways,” said study coauthor and pediatrician Dr. Georgina Peacock. “These problems are sometimes experienced by children with neurologic disorders,” said Peacock, of the CDC’s National Center on Birth Defects and Developmental Disabilities

 

The most commonly reported complications for children with neurologic disorders in this study were influenza-associated pneumonia and acute respiratory distress syndrome (ARDS). 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.

 

The CDC is partnering with the American Academy of Pediatrics and influenza advocacy groups to help promote awareness about the importance of influenza prevention and treatment in these high risk children. The CDC, the American Academy of Pediatrics (AAP), Family Voices, and Families Fighting Flu recognize the need to communicate with care takers about the potential for severe outcomes in these children if they are infected with flu.

 

CDC recommends that everyone aged six months and older get an annual influenza vaccination, including people who are at high risk of developing serious complications. Flu vaccine is the best prevention method available. Antiviral drugs, which can treat flu illness, are a second line of defense against flu.

 

See the CDC announcement

 

 

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