Laboratory and surveillance studies following a suspected Dengue case in Greece, 2012

International Journal of Infectious Diseases

卷:30

Athanasios Tsakris¹  Markos Marangos²  Theano Georgakopoulou³  Marios Detsis³  Eirini Terzaki³  Lambrini Veneti³  Christos Hadjichristodoulou³  Danai Pervanidou³  Sotirios Tsiodras³  Agoritsa Baka³  George Koliopoulos⁴  Elpida Gavana⁵  Anna Papa⁵ 

[1] Department of Microbiology, School of Medicine, University of Athens, 11527 Athens, Greece;

[2] Division of Infectious Diseases, Department of Internal Medicine, University Hospital of Patras, 26500 Patras, Greece;

[3] Hellenic Centre for Disease Control and Prevention (HCDCP), Athens 15123, Greece;

[4] Laboratory of Biological Control of Pesticides, Benaki Phytopathological Institute, Athens 14561, Greece;

[5] National Reference Centre for Arboviruses, Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece;

关键词: Dengue fever;    arbovirus;    West Nile virus;    Greece;   

DOI  :  10.1016/j.ijid.2014.11.019

来源: DOAJ

【 摘 要 】

Objectives: To describe the laboratory assays used to investigate a suspected dengue case in summer 2012 in western Greece and to report the public health response.Design of methods: Samples from the patient were tested for detection of Dengue virus (DENV) antibodies, NS1 antigen and RNA. Public health professionals interviewed residents of the village, and blood samples taken from 132 persons were tested for antibodies for DENV and West Nile virus (WNV). Samples from 10 persons who reported symptoms in the prior 15 days (including 3 persons who had fever at the time of sampling) were tested for DENV, WNV and additional arboviruses. Entomological missions were organized in the area of potential exposure to investigate the presence of competent DENV vectors.Results: Based on a combination of serological and molecular methods, DENV infection was excluded, and the problems in the serology, especially in the DENV NS1 antigen, were attributed to interfering factors. A 6.1% WNV seroprevalence was detected in the region, and phlebovirus IgM and IgG antibodies were detected in two of three persons who had fever at the time of sampling. Aedes albopictus adult mosquitoes were present in the region.Conclusions: A multi-disciplinary field and laboratory investigation showed no evidence of DENV infection. There is a need for industries to improve the immunometric assays to avoid interference with rheumatoid or other factors, and increased awareness is needed for the evaluation of the diagnostic assays. The high WNV seroprevalence in the investigated region highlights the need for strengthening awareness on vector borne diseases. The presence of Ae. albopictus suggests that the possibility of introduction of DENV exists, and preparedness plans are needed.

【 授权许可】

Unknown