tetano
Editor, Senior Moderator
Influenza Other Respir Viruses. 2015 Sep 15. doi: 10.1111/irv.12348. [Epub ahead of print]
[h=1]Early occurrence of Influenza A epidemics coincided with changes in occurrence of other respiratory virus infections.[/h] van Asten L[SUP]1[/SUP], Bijkerk P[SUP]1[/SUP], Fanoy E[SUP]1[/SUP], van Ginkel A[SUP]1[/SUP], Suijkerbuijk A[SUP]1[/SUP], van der Hoek W[SUP]1[/SUP], Meijer A[SUP]1[/SUP], Vennema H[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Viral interaction in which outbreaks of influenza and other common respiratory viruses might affect each other has been postulated by several short studies. Regarding longer time-periods, influenza epidemics occasionally occur very early in the season, as during the 2009 pandemic. Whether early occurrence of influenza epidemics impacts outbreaks of other common seasonal viruses is not clear.
[h=4]OBJECTIVES:[/h] We investigated whether early occurrence of influenza outbreaks coincides with shifts in the occurrence of other common viruses, including both respiratory and non-respiratory viruses.
[h=4]METHODS:[/h] We investigated time trends of and the correlation between positive laboratory diagnoses of 8 common viruses in the Netherlands over a ten year time-period (2003-2012): influenza viruses types A & B, respiratory syncytial virus (RSV), rhinovirus, coronavirus, norovirus, enterovirus, and rotavirus. We compared trends in viruses between early and late influenza seasons.
[h=4]RESULTS:[/h] Between 2003 and 2012, influenza B, RSV and coronavirus showed shifts in their occurrence when influenza A epidemics occurred earlier than usual (before week 1). Although shifts were not always consistently of the same type, when influenza type A hit early, RSV outbreaks tended to be delayed, coronavirus outbreaks tended to be intensified, and influenza virus type B tended not to occur at all. Occurrence of rhinovirus, norovirus, rotavirus and enterovirus did not change.
[h=4]CONCLUSION:[/h] When influenza A epidemics occured early, timing of the epidemics of several respiratory winter viruses usually occuring close in time to influenza A was affected while trends in rhinoviruses (occurring in autumn) and trends in enteral viruses were not. This article is protected by copyright. All rights reserved.
This article is protected by copyright. All rights reserved.
[h=4]KEYWORDS:[/h] RSV ; coronavirus; influenza; seasonality; time trends; viral interference; virus interaction
PMID: 26369646 [PubMed - as supplied by publisher] Free full text
[h=1]Early occurrence of Influenza A epidemics coincided with changes in occurrence of other respiratory virus infections.[/h] van Asten L[SUP]1[/SUP], Bijkerk P[SUP]1[/SUP], Fanoy E[SUP]1[/SUP], van Ginkel A[SUP]1[/SUP], Suijkerbuijk A[SUP]1[/SUP], van der Hoek W[SUP]1[/SUP], Meijer A[SUP]1[/SUP], Vennema H[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] [h=4]BACKGROUND:[/h] Viral interaction in which outbreaks of influenza and other common respiratory viruses might affect each other has been postulated by several short studies. Regarding longer time-periods, influenza epidemics occasionally occur very early in the season, as during the 2009 pandemic. Whether early occurrence of influenza epidemics impacts outbreaks of other common seasonal viruses is not clear.
[h=4]OBJECTIVES:[/h] We investigated whether early occurrence of influenza outbreaks coincides with shifts in the occurrence of other common viruses, including both respiratory and non-respiratory viruses.
[h=4]METHODS:[/h] We investigated time trends of and the correlation between positive laboratory diagnoses of 8 common viruses in the Netherlands over a ten year time-period (2003-2012): influenza viruses types A & B, respiratory syncytial virus (RSV), rhinovirus, coronavirus, norovirus, enterovirus, and rotavirus. We compared trends in viruses between early and late influenza seasons.
[h=4]RESULTS:[/h] Between 2003 and 2012, influenza B, RSV and coronavirus showed shifts in their occurrence when influenza A epidemics occurred earlier than usual (before week 1). Although shifts were not always consistently of the same type, when influenza type A hit early, RSV outbreaks tended to be delayed, coronavirus outbreaks tended to be intensified, and influenza virus type B tended not to occur at all. Occurrence of rhinovirus, norovirus, rotavirus and enterovirus did not change.
[h=4]CONCLUSION:[/h] When influenza A epidemics occured early, timing of the epidemics of several respiratory winter viruses usually occuring close in time to influenza A was affected while trends in rhinoviruses (occurring in autumn) and trends in enteral viruses were not. This article is protected by copyright. All rights reserved.
This article is protected by copyright. All rights reserved.
[h=4]KEYWORDS:[/h] RSV ; coronavirus; influenza; seasonality; time trends; viral interference; virus interaction
PMID: 26369646 [PubMed - as supplied by publisher] Free full text