Molecular surveillance of circulating dengue genotypes through European travelersArchived
The authors analysed samples from travellers returning from the tropics with acute dengue infections between 2002 and 2008.
Domingo C, Niedrig M, Gascón J, Palacios G, Reyes N, Malo MJ, Wichmann O, et al.J Trav Med 2011: 18 (3): 183-90
The authors analysed samples from travellers returning from the tropics with acute dengue infections between 2002 and 2008. A total of 186 dengue virus (DENV) strains were classified into 12 distinct genotype groups within the four dengue serotypes (82 DENV-1, 39 DENV-2, 48 DENV-3 and 17 DENV-4). The identification of the emergence of different sero- and genotypes, the appearance of new clades correlating with outbreaks, and the identification of a dengue-4 genotype not previously reported were achieved. Most of the patients had travelled to America or the Caribbean, Southeast Asia and the Indian subcontinent. However, African strains characterized in this study have provided valuable data on dengue circulation on the continent.
ECDC comment: Dengue viruses (DENV) are the most widespread arthropod-borne viruses, which have shown an unexpected geographic expansion, as well as an increase in number and severity of outbreaks in the last decades. Dengue viruses are highly mobile, transported by infected travellers. On the European continent, the last dengue epidemic dates from 1927–28 in Greece, with high mortality, and in 2010 autochthonous cases were observed in France and Croatia. However, imported cases of dengue fever are frequently reported by travellers returning to the EU from endemic areas. ECDC systematically monitors reports of seasonal epidemics of dengue through epidemic intelligence activities in order to identify significant changes in the epidemiology of the disease. Molecular epidemiological studies of imported DENV are essential for the understanding of viral transmission patterns and for tracking the worldwide spread of dengue strains. This study demonstrates the importance of surveillance of imported diseases contributing to the epidemiological knowledge of infectious diseases in endemic areas.
Extensively drug-resistant gonorrhoea: risk of further dissemination within and across Europe
1 Apr 2019 - ECDC comment on the study 'Detection in the United Kingdom of the Neisseria gonorrhoeae FC428 clone, with ceftriaxone resistance and intermediate resistance to azithromycin, October to December 2018' by Eyre et al. in the Eurosurveillance edition of 7 March 2019.
Conclusions of the twentieth IHR Emergency Committee do not change the ECDC risk assessment for Europe concerning polio
11 Mar 2019 - Statement of the twentieth IHR Emergency Committee Regarding the International Spread of Poliovirus, 1 March 2019
WHO recommendations for influenza virus vaccine composition for the 2019–2020 northern hemisphere season
1 Mar 2019 - On 18–20 February 2019, the World Health Organization (WHO) agreed on the recommended composition of the quadrivalent influenza vaccine for the northern hemisphere 2019–2020 influenza season: an A/Brisbane/02/2018 (H1N1)pdm09-like virus, an A(H3N2) virus component to be announced on 21 March 2019, a B/Colorado/06/2017-like virus (B/Victoria/2/87 lineage) and a B/Phuket/3073/2013-like virus (B/Yamagata/16/88 lineage).