Invasive bacterial infections following influenza: a time-series analysis in Montreal, Canada, 1996-2008

被引:16
作者
Allard, R. [1 ,2 ]
Couillard, M. [3 ]
Pilon, P. [1 ,4 ]
Kafka, M. [1 ,4 ]
Bedard, L. [1 ]
机构
[1] Montreal Hlth & Social Serv Agcy, Dept Publ Hlth, Montreal, PQ, Canada
[2] McGill Univ, Dept Epidemiol Biostat & Occupat Hlth, Montreal, PQ H3A 2T5, Canada
[3] Inst Natl Sante Publ Quebec, Publ Hlth Lab, Quebec City, PQ, Canada
[4] Univ Montreal, Dept Social & Prevent Med, Montreal, PQ H3C 3J7, Canada
关键词
Bacterial infections; incidence; influenza; STREPTOCOCCAL INFECTION; PNEUMOCOCCAL DISEASE; SEASONAL INFLUENZA; UNITED-STATES; VIRUS; ASSOCIATION; DEATHS; EPIDEMIOLOGY; PNEUMONIA; PATTERNS;
D O I
10.1111/j.1750-2659.2011.00297.x
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Please cite this paper as: Allard et al. (2012) Invasive bacterial infections following influenza: a time-series analysis in Montreal, Canada, 1996-2008. Influenza and Other Respiratory Viruses 6(4), 268-275. Background Shared seasonal patterns, such as between influenza and some respiratory bacterial infections, can create associations between phenomena not causally related. Objectives To estimate the association of influenza with subsequent bacterial infections after full adjustment for confounding by seasonal and long-term trends. Methods Time series of weekly counts of notified cases of invasive infections with Haemophilus influenzae, Neisseria meningitidis, Streptococcus pneumoniae and Streptococcus pyogenes, in Montreal, Canada, 1996-2008, were modelled by negative binomial regression, with terms representing seasonal and long-term trends and terms for numbers of positive laboratory tests for influenza A and B. Results The associations of S pneumoniae, H influenzae and N.similar to meningitidis with influenza disappeared after seasonal terms were added to the model. However, the influenza B count remained associated with the S.similar to pyogenes counts for the same week and the following week: S pyogenes incidence rate ratios were 1.0376 (95% CI: 1.0009-1.0757) and 1.0354 (0.9958-1.0766), respectively, for each increase of 1 in the influenza count. Conclusions Influenza B accounts for about 8percnt; of the incidence of invasive S.similar to pyogenes infections, over and above any effect associated with modellable seasonal and long-term trends. This association of influenza B with S pyogenes infections can be attributed largely to the years 1997, 2001, 2007 and 2008, when late peaks in influenza B counts were followed by peaks in S pyogenes notifications. This finding reinforces the case for universal immunization against influenza, as partial protection against the flesh eating disease.
引用
收藏
页码:268 / 275
页数:8
相关论文
共 46 条
[1]   Seasonality and the dynamics of infectious diseases [J].
Altizer, S ;
Dobson, A ;
Hosseini, P ;
Hudson, P ;
Pascual, M ;
Rohani, P .
ECOLOGY LETTERS, 2006, 9 (04) :467-484
[2]  
[Anonymous], 1889, NATURE, V41, P145
[3]   Models for the relationship between ambient temperature and daily mortality [J].
Armstrong, Ben .
EPIDEMIOLOGY, 2006, 17 (06) :624-631
[4]   How do viral infections predispose patients to bacterial infections? [J].
Beadling, C ;
Slifka, MK .
CURRENT OPINION IN INFECTIOUS DISEASES, 2004, 17 (03) :185-191
[5]   Interactions between influenza and bacterial respiratory pathogens: implications for pandemic preparedness [J].
Brundage, JF .
LANCET INFECTIOUS DISEASES, 2006, 6 (05) :303-312
[6]  
Centers for Disease Control and Prevention (CDC), 2003, MMWR Morb Mortal Wkly Rep, V52, P106
[7]   Seasonal variation in the epidemiology of sepsis [J].
Danai, Pajman A. ;
Sinha, Sumita ;
Moss, Marc ;
Haber, Michael J. ;
Martin, Greg S. .
CRITICAL CARE MEDICINE, 2007, 35 (02) :410-415
[8]   Seasonality of infectious diseases and severe acute respiratory syndrome - what we don't know can hurt us [J].
Dowell, SF ;
Ho, MS .
LANCET INFECTIOUS DISEASES, 2004, 4 (11) :704-708
[9]   Seasonal patterns of invasive pneumococcal disease [J].
Dowell, SF ;
Whitney, CG ;
Wright, C ;
Rose, CE ;
Schuchat, A .
EMERGING INFECTIOUS DISEASES, 2003, 9 (05) :573-579
[10]  
Dowell SF, 2001, EMERG INFECT DIS, V7, P369