当前位置: X-MOL 学术Morb. Mortal. Wkly. Rep. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Use of Real-Time PCR for Chlamydia psittaci Detection in Human Specimens During an Outbreak of Psittacosis - Georgia and Virginia, 2018.
Morbidity and Mortality Weekly Report ( IF 33.9 ) Pub Date : 2021-04-09 , DOI: 10.15585/mmwr.mm7014a1
Olivia L. McGovern , Miwako Kobayashi , Kelly A. Shaw , Christine Szablewski , Julie Gabel , Caroline Holsinger , Cherie Drenzek , Skyler Brennan , Jennifer Milucky , Jennifer L. Farrar , Bernard J. Wolff , Alvaro J. Benitez , Kathleen A. Thurman , Maureen H. Diaz , Jonas M. Winchell , Stephanie Schrag

Psittacosis is typically a mild febrile respiratory illness caused by infection with the bacterium Chlamydia psittaci and usually transmitted to humans by infected birds (1). On average, 11 psittacosis cases per year were reported in the United States during 2000-2017. During August-October 2018, the largest U.S. psittacosis outbreak in 30 years (82 cases identified*) occurred in two poultry slaughter plants, one each in Virginia and Georgia, that shared source farms (2). CDC used C. psittaci real-time polymerase chain reaction (PCR) to test 54 human specimens from this outbreak. This was the largest number of human specimens from a single outbreak ever tested for C. psittaci using real-time PCR, which is faster and more sensitive than commercially available serologic tests. This represented a rare opportunity to assess the utility of multiple specimen types for real-time PCR detection of C. psittaci. C. psittaci was detected more frequently in lower respiratory specimens (59% [10 of 17]) and stool (four of five) than in upper respiratory specimens (7% [two of 28]). Among six patients with sputum and nasopharyngeal swabs tested, C. psittaci was detected only in sputum in five patients. Cycle threshold (Ct) values suggested bacterial load was higher in lower respiratory specimens than in nasopharyngeal swabs. These findings support prioritizing lower respiratory specimens for real-time PCR detection of C. psittaci. Stool specimens might also have utility for diagnosis of psittacosis.

中文翻译:

实时荧光定量PCR在斑疹病暴发期间在人类标本中检测鹦鹉热衣原体的应用-乔治亚州和弗吉尼亚州,2018年。

牛皮癣通常是由鹦鹉热衣原体感染引起的轻度发热性呼吸道疾病,通常是由感染的禽类传播给人类的(1)。在2000年至2017年期间,美国平均每年报告11例鹦鹉热病例。在2018年8月至10月期间,美国两处家禽屠宰场爆发了30年来最大规模的鹦鹉热疫情(已确诊82例*),两家屠宰厂共用源农场(2)。疾病预防控制中心使用鹦鹉热衣原体实时聚合酶链反应(PCR)测试了这次疫情的54个人标本。这是有史以来使用实时PCR检测鹦鹉热衣原体的最多一次人类标本,比市售血清学检测更快,更灵敏。这代表了难得的机会来评估多种标本类型对鹦鹉热衣原体的实时PCR检测的效用。在下部呼吸道标本(59%[17中的10])和粪便(五分之四)中比在上部呼吸道标本(7%[28的二])检测到鹦鹉热衣原体。在六名接受痰液和鼻咽拭子检查的患者中,仅五名患者的痰液中检测到鹦鹉热衣原体。循环阈值(Ct)值表明,下呼吸道标本中的细菌载量高于鼻咽拭子中的细菌载量。这些发现支持优先确定下呼吸道标本用于鹦鹉热衣原体的实时PCR检测。粪便标本还可用于诊断鹦鹉热。在下呼吸道标本(59%[17中的10])和粪便(五分之四)中比在上呼吸道标本(7%[28的两个])中更频繁地发现鹦鹉热。在六名接受痰液和鼻咽拭子检查的患者中,仅五名患者的痰液中检测到鹦鹉热衣原体。循环阈值(Ct)值表明,下呼吸道标本中的细菌载量高于鼻咽拭子中的细菌载量。这些发现支持优先考虑下呼吸道标本,以用于鹦鹉热衣原体的实时PCR检测。粪便标本还可用于诊断鹦鹉热。在下呼吸道标本(59%[17中的10])和粪便(五分之四)中比在上呼吸道标本(7%[28的两个])中更频繁地发现鹦鹉热。在六名接受痰液和鼻咽拭子检查的患者中,仅五名患者的痰液中检测到鹦鹉热衣原体。循环阈值(Ct)值表明,下呼吸道标本中的细菌载量高于鼻咽拭子中的细菌载量。这些发现支持优先确定下呼吸道标本用于鹦鹉热衣原体的实时PCR检测。粪便标本还可用于诊断鹦鹉热。循环阈值(Ct)值表明,下呼吸道标本中的细菌载量高于鼻咽拭子中的细菌载量。这些发现支持优先确定下呼吸道标本用于鹦鹉热衣原体的实时PCR检测。粪便标本还可用于诊断鹦鹉热。循环阈值(Ct)值表明,下呼吸道标本中的细菌载量高于鼻咽拭子中的细菌载量。这些发现支持优先确定下呼吸道标本用于鹦鹉热衣原体的实时PCR检测。粪便标本还可用于诊断鹦鹉热。
更新日期:2021-04-09
down
wechat
bug