ENHANCED INVESTIGATION OF ETIOLOGY OF DISEASES DURING THE SHIGELLOSIS OUTBREAK WITH FATAL OUTCOMES AMONG CHILDREN


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The outbreak of shigellosis caused by Shigella. flexneri 2a which affected a total of 42 persons was revealed by epidemiological analysis and microbiological testing in a nursing home for disabled children with a severe pathology of the nervous system. At the same time, four fatal cases among children were registered. The main purpose of our study was to perform an enhanced investigation to find potentially novel etiological agent among affected persons especially in cases with fatal outcome. We applied a broad range of commercial kits based on the nucleic acid amplification techniques as well as bacteriological methods for etiological diagnosis. Additionally, several S. flexneri 2a isolates and revealed bacterial pathogens were subjected to pulsed-field gel electrophoresis (PFGE) and Whole Genome Sequencing (WGS) for expanded genetic characterization as well as demonstration of their clonality and the presents/absence of unusual pathogenic determinants. Genetic relationship between viral pathogens was characterized by Sanger sequencing of phylogenetically informative regions. Epidemiological data and lab testing allowed considering the generalized herpes simplex virus type 1 infection (HSV-1) to be a possible cause of fatal cases.

作者简介

N. Parkina

Central Research Institute for Epidemiology

Email: parkina@cmd.su
мл. науч. сотр. ЛМДиЭ КИ ОМДиЭ ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

E. Sakalkina

Central Research Institute for Epidemiology

Email: evzayceva@cmd.su
мл. науч. сотр. ЛМДиЭ КИ ОМДиЭ ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

A. Guseva

Central Research Institute for Epidemiology

Email: anna302bis@mail.ru
мл. науч. сотр. ЛМДиЭ КИ ОМДиЭ ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

K. Kuleshov

Central Research Institute for Epidemiology

Email: konstantinkul@gmail.com
канд. мед. наук, науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

T. Olneva

Central Research Institute for Epidemiology

Email: epid-oki@pcr.ru
мл. науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

I. Goptar

Central Research Institute for Epidemiology

Email: IrinaGoptar@cmd.su
науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

E. Domonova

Central Research Institute for Epidemiology

Email: elvira.domonova@pcr.ms
ст. науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

S. Matosova

Central Research Institute for Epidemiology

Email: svetlana.matosova@cmd.su
мл. науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

O. Silveystrova

Central Research Institute for Epidemiology

Email: olga.silveystrova@pcr.ms
мл. науч. сотр., ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

N. Khromova

Central Research Institute for Epidemiology

Email: hromova@cmd.su
врач КДЛ ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

Alexander Podkolzin

Central Research Institute for Epidemiology

Email: apodkolzin@mail.ru
Doctor of Medical Sciences, Head laboratory of Enteric Diseases Molecular Diagnostics and Epidemiology «Federal Budget Institute of Science Central Research Institute for Epidemiology», 111123, Novogireyevskaya St. 3A, Moscow, Russia 3A, Novogireyevskaya str., Moscow, 111123, Russia

G. Shipulin

Central Research Institute for Epidemiology

Email: shipgerman@gmail.com
канд. мед. наук, руководитель ОМДиЭ ФБУН «Центральный НИИ Эпидемиологии» Роспотребнадзора 3A, Novogireyevskaya str., Moscow, 111123, Russia

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