Introduction: In the autumn of 2009 the authors participated in a humanitarian operation in Western Ukraine by undertaking
an epidemiological investigation of an influenza-like-illness (ILI) in the L’viv Oblast region. Mobile biological survey teams
took samples from civilian patients with severe acute respiratory distress syndrome, rapid transportation of the samples,
and their molecular analysis in Poland to provide accurate results.
Objective: The aim of the study was the molecular and epidemiological analysis of the biological samples collected.
Material and Methods: Real-time reverse transcriptase polymerase chain reaction (real-time RT-PCR), multiplex PCR
techniques, traditional Sanger Sequencing and classical viral culture methods were used.
Results: Among the 124 influenza-like illness cases, ~50% (58) were positive for influenza A virus in WHO-CDC molecular
assay, including subtyping. The specimens were further analyzed to confirm results and determine the genetic sequence.
Phylogenetically, the nucleotide similarity of both the Ukraine specimens and reference A/California/7/2009 (pH1N1) was
99.2–99.3%. Oseltamivir resistance was not registered. HA1 region characterization showed an overall protein identity of
98.5–99.4%.
Conclusions: An unexpected high contribution of influenza A was confirmed among ILI patients, as well as a very limited
number of other detected viruses, indicate that the 2009 epidemic in western Ukraine was strongly related to novel influenza
A/H1N1. The importance of swift sharing of information and reference laboratories networking in surveillance, as well as
serving governments and international agencies in pursuing adequate actions, should be stressed.
Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies
Informacja
SZANOWNI CZYTELNICY!
UPRZEJMIE INFORMUJEMY, ŻE BIBLIOTEKA FUNKCJONUJE W NASTĘPUJĄCYCH GODZINACH:
Wypożyczalnia i Czytelnia Główna: poniedziałek – piątek od 9.00 do 19.00