A vaccine used to prevent pandemic flu boosts the risk of sleep disorder among teens and children, doctors said after a study in England strengthened evidence from Scandinavia.
Narcolepsy - Overview Incidence Causes Symptoms Diagnosis Treatment Prognosis Prevention FAQs
Sleep is the blissful state that rejuvenates our mind and body everyday and any deprivation often leads to a disorder that can affect our health
Sleep is the blissful state that rejuvenates our mind and body everyday and any deprivation often leads to a disorder that can affect our health
Narcolepsy is a chronic disorder of the nervous system that causes excessive drowsiness, often causing people to fall asleep uncontrollably.
It normally occurs among 25-50 of every 100,000 people, although figures are sketchy, the study said.
About Hypersomnia
Hyper means “excessive” and somnia refers to “sleep”, so hypersomnia is excessively long or deep sleep despite sleeping for several hours at night.
Hyper means “excessive” and somnia refers to “sleep”, so hypersomnia is excessively long or deep sleep despite sleeping for several hours at night.
The bug turned out to be as dangerous as normal "seasonal" flu, a discovery prompting some accusations that health watchdogs had over-reacted.
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Sleeping Disorders
How many times have you stayed awake in the dead of the night counting sheep? If it is fairly often then you could be suffering from a sleep disorder!
How many times have you stayed awake in the dead of the night counting sheep? If it is fairly often then you could be suffering from a sleep disorder!
The new research conducted in England suggests that data from the two Scandinavian countries were not a freak result, the study said.
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Sleep Disorders in Children - Overview, Types, Diagnosis, Management
Sleep disorders are problems in sleep that meet diagnostic criteria for a disorder. They include insomnia, obstructive sleep apnea, parasomnias and narcolepsy.
Sleep disorders are problems in sleep that meet diagnostic criteria for a disorder. They include insomnia, obstructive sleep apnea, parasomnias and narcolepsy.
As H1N1 has largely run its course, further need of the AS03 adjuvant to fight this strain "seems unlikely," the new study said. An alternative vaccine, Celvepan, exists.
But the findings raise questions as to whether AS03 vaccines should be used against other flu strains, such as H5 and H9 types, it added.
Asked to comment on the study, John McCauley at Britain's National Institute for Medical Research said the increased risk in narcolepsy "is possibly a one-off" as vaccines today had a different formula from Pandemrix.
Even so, "surveillance needs to be continued," he said.
The research did not compare the risk of narcolepsy with the risk from contracting H1N1 if unvaccinated.
More than a fifth of the world's population was infected with the H1N1 virus in the 2009-2010 pandemic, according to estimates published last month.
Children aged five to 19 had the highest rates of infection, accounting for 47 percent of the total. Older people aged 65 and over accounted for 11 percent.
By the time the pandemic was officially over in August 2010, countries had notified the UN's World Health Organisation (WHO) of less than a million infections and around 18,500 deaths, but this has always been known to be a fraction of the toll.
Source-AFP
