Obesity Increases the Duration of Influenza A Virus Shedding in Adults.

Obesity Increases the Duration of Influenza A Virus Shedding in Adults.
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DOI:
10.1093/infdis/jiy370
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发表时间:
2018-09-22
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Gordon A
Gordon A
中科院分区:
其他
文献类型:
--
作者:
Maier HE;Lopez R;Sanchez N;Ng S;Gresh L;Ojeda S;Burger-Calderon R;Kuan G;Harris E;Balmaseda A;Gordon A

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流行病学研究表明,肥胖增加了流感病毒感染的严重并发症和死亡的风险,特别是在老年人中。这项工作调查了肥胖对尼加拉瓜马那瓜家庭传播研究中病毒脱落持续时间的影响,超过3个季节(2015-2017)。有症状的肥胖成人比非肥胖成人排出甲型流感病毒的时间长42%(校正的事件时间比[ETR],1.42; 95%置信区间[CI],1.06-1.89);未观察到与B型流感病毒排出持续时间相关。即使在少症状和无症状的成人中,肥胖也使甲型流感病毒排毒持续时间增加了104%(调整后的ETR,2.04; 95% CI,1.35-3.09)。这些发现表明,肥胖可能在流感传播中发挥重要作用。来自尼加拉瓜马那瓜家庭的2项研究的数据用于比较肥胖与非肥胖参与者的流感病毒脱落持续时间,使用逆转录聚合酶链反应分析。这项研究发现,在肥胖的成年人中,A型流感病毒脱落的持续时间更长。
Epidemiologic studies indicate that obesity increases the risk of severe complications and death from influenza virus infections, especially in elderly individuals. This work investigates the effect of obesity on the duration of viral shedding within household transmission studies in Managua, Nicaragua, over 3 seasons (2015–2017). Symptomatic obese adults were shown to shed influenza A virus 42% longer than nonobese adults (adjusted event time ratio [ETR], 1.42; 95% confidence interval [CI], 1.06–1.89); no association was observed with influenza B virus shedding duration. Even among paucisymptomatic and asymptomatic adults, obesity increased the influenza A shedding duration by 104% (adjusted ETR, 2.04; 95% CI, 1.35–3.09). These findings suggest that obesity may play an important role in influenza transmission. Data from 2 studies of households in Managua, Nicaragua, were used to compare influenza virus shedding duration, using reverse transcription polymerase chain reaction analysis, in obese versus nonobese participants. This study found longer durations of influenza A virus shedding among obese adults.
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