National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala.
Influenza Other Respir Viruses. 2021 Mar;15(2):181-187. doi: 10.1111/irv.12815. Epub 2020 Dec 5.
We assessed EV-D68 epidemiology and phylogenetics among children aged ≤9 years hospitalized with severe acute respiratory illnesses at five sites in Panama and El Salvador during 2012-2013. Respiratory specimens positive for enterovirus or rhinovirus were tested by real-time RT-PCR for EV-D68, and partial VP1 gene sequences were determined. Of 715 enrolled children, 17 from sites in both countries were EV-D68-positive and commonly had a history of asthma or wheezing. Phylogenetically, 15 of 16 sequences fell into Clade B1, and one into Clade A2. The Central American EV-D68s were closely related genetically to contemporaneous strains from North America, South America, and the Caribbean.
我们评估了 2012-2013 年期间在巴拿马和萨尔瓦多的五个地点因严重急性呼吸道疾病住院的≤9 岁儿童中的 EV-D68 流行病学和系统发育学。通过实时 RT-PCR 对呼吸道样本进行了肠道病毒或鼻病毒检测,以确定 EV-D68,同时还确定了部分 VP1 基因序列。在 715 名入组儿童中,来自两国的 17 名儿童 EV-D68 呈阳性,他们通常都有哮喘或喘息的病史。系统发育分析表明,16 个序列中有 15 个属于 B1 分支,1 个属于 A2 分支。中美洲的 EV-D68 与同时期来自北美的、南美的和加勒比地区的病毒株在遗传上密切相关。