Decreased effectiveness of the influenza A(H1N1) pdm09 strain in live attenuated influenza vaccines: An observational bias or a technical challenge?
Penttinen, P.M., Friede, M.H.
Influenza virus characterisation, July 2014
During the 2013–14 season, A(H1N1)pdm09, A(H3N2), B/Victoria- and B/Yamagata-lineage influenza viruses have continued to co-circulate in EU/EEA Member States.
Weekly influenza surveillance overview, Nov 15, 2013 - week 45
During week 45/2013: All 27 reporting countries experienced low intensity influenza activity.
No Serological Evidence of Influenza A H1N1pdm09 Virus Infection as a Contributing Factor in Childhood Narcolepsy after Pandemrix™ Vaccination Campaign in Finland
This is the first published study where an attempt has been made to understand the possible biological mechanisms behind development of narcolepsy following vaccination with Pandemrix™.
The incidence of narcolepsy in Europe: Before, during, and after the influenza A(H1N1)pdm09 pandemic and vaccination campaigns
Wijnans, L., Lecomte, C., de Vries, C., Weibel, D., Sammon, C., Hviid, A., Svanstrom, H., Molgaard-Nielsen, D., Heijbel, H., Dahlstrom, L.A., Hallgren, J., Sparen, P., Jennum, P., Mosseveld, M., Schuemie, M., van der Maas, N., Partinen, M., Romio, S., Trotta, F., Santuccio, C., Menna, A., Plazzi, G., Moghadam, K.K., Ferro, S., Lammers, G., J., Overeem, S., Johansen, K., Kramarz, P., Bonhoeffer, J., Sturkenboom, M.C.J.M.
Narcolepsy in association with pandemic influenza vaccination – a multi-country European epidemiological investigation
This report summarises the results from two epidemiological studies to investigate a possible association between an unexpected increase in narcolepsy cases following the use of the influenza A(H1N1)pdm09 vaccines.
Oseltamivir-resistant influenza A(H1N1)pdm09 influenza virus in Dutch travellers returning from Spain, August 2012
Antiviral susceptibility is a key area for influenza surveillance as it can affect patient management, prevention of outbreaks and pandemic preparedness.
First estimates of the global numbers of deaths associated with the 2009 pandemic
It is a truism that the number of individual deaths confirmed and reported as due to seasonal or pandemic influenza will represents only a proportion of the actual number of premature deaths that follow as a consequence of the virus infection.