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narcolepsy CASES OF INFLUENZA VACCINE IN 12 COUNTRIES

The vaccine can cause narcolepsy, a disease that causes sudden sleep attacks.

The World Health Organization said on Tuesday necessary to conduct further research on the increased risk of narcolepsy among children vaccinated against the H1N1 influenza virus, observed in several countries.

"Since August 2010, after widespread vaccination against H1N1, 2009, there have been reports of narcolepsy, particularly among children and adolescents, at least 12 countries, "WHO said in a note.

These cases have been more frequent in Sweden, Finland and Iceland, the organization added nearly a week after the highest Finnish health authority has announced that the vaccine strongly suspected H1N1 Pandemrix of GlaxoSmithKline (GSK) have contributed to the sudden multiplication of cases of narcolepsy in children and adolescents in Finland in 2009 and 2010.

The Finnish National Institute for Health (THL) acknowledged that further studies are needed to prove it but felt that "the observed association (was) so obvious that it was unlikely that other factors such collateral could explain the phenomenon. "

Narcolepsy or Gélineau disease is a rare neurological condition that is irresistible sleep attacks that occur without prior warning and with extreme tiredness.

In 2009-2010, Finnish doctors diagnosed 60 cases of narcolepsy in children and adolescents between 4 and 19 years, almost three times more than during the two years above.

In almost 90% cases (52), the children had been vaccinated with the Pandemrix, which was injected over 90 million people in 19 countries during the vaccination campaign against H1N1 influenza, as THL.

The Advisory Committee on Vaccine Safety (GACVS) WHO studied the issue and considered by his party was a need for research on global level.

"The Committee agreed that further investigations are warranted advanced on (the ratio), the narcolepsy and vaccination against H1N1 influenza and other vaccines Pandemrix "against the pandemic virus first century held in June 2009, WHO said.

The question does not arise, says UN agency, in the case of classical vaccines against ordinary flu or other illness used in the past.