Viral spectrum of 36 outbreaks of influenza like-illness in Shandong province / 中华实验和临床病毒学杂志
Chinese Journal of Experimental and Clinical Virology
; (6): 34-38, 2019.
Article
em Zh
| WPRIM
| ID: wpr-804611
Biblioteca responsável:
WPRO
ABSTRACT
Objective@#To understand the viral spectrum of influenza-like illness (ILI), Shandong province during 2013-2014.@*Methods@#The data of 36 ILI outbreaks were collected and analyzed. Multiple respiratory pathogens were detected with RT-PCR in pharynx swab specimens.@*Results@#Totally, 35 outbreaks occurred in winter and spring, and dispersed in 12 cities; 27 outbreaks happened in primary and secondary schools. Many of the outbreaks, 17 (47.2%), were caused by influenza virus type B (FluB), followed by FluA H1 and H3, 5 (13.8%) outbreaks, respectively. Mixed infection caused 7 outbreaks. Totally 437 samples were collected, with 235 (53.8%) positive specimens, in which FluB was mostly detected, 142 (32.5%). Except Flu, parainfluenza virus type 2 (PIV2) was the most frequently detected, followed by coronavirus (CoV). The constituent ratio of FluB under 15 years of age was the highest, such as CoV in 25-59 years old group and FluA H1 in others groups.@*Conclusions@#ILI outbreaks occurred mostly in primary and secondary schools. Virus was the main pathogen, with the dominant strains of FluB. However, the dominant strain in different age groups was different.
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WPRIM
Idioma:
Zh
Ano de publicação:
2019
Tipo de documento:
Article