Clinical-epidemiological characteristics delivery cases of tropic dengue fever
https://doi.org/10.22625/2072-6732-2021-13-1-78-85
Abstract
Dengue fever is a zooantroponotic, vector-borne viral disease. It is common among the population of tropical countries and is characterized by a tendency to expand to other countries as a result of infection drifts.
Objective: to identify epidemiological, clinical and laboratory features of imported dengue fever in St. Petersburg.
Materials and methods. The obtained data of official registration of cases of diseases in the Department of accounting and registration of infectious and parasitic diseases of the city of St. Petersburg and clinical case histories from the Сlinical Infectious diseases hospital named after S.P. Botkin for 2012–2018 were used as the basis for epidemiological analysis. 144 cases of dengue fever were identified on the basis of registration materials in the city during this period, of which 86 cases were studied on clinical histories. Standards methods of epidemiological diagnostics and statistics were used in the article.
Results and discussion. Epidemiological anamnesis has been seen in a wide variety of countries in which tourists stayed and became infected. The hemorrhagic form of dengue fever was diagnosed in only 18 (19,1%) out of 86 patients. This form usually develops with repeated encounters with the virus and is more severe than the classic version of the disease. Dengue fever remains a topical imported disease and is associated with an increase in tourists, often re-visiting disadvantaged tropical countries. Both sexes were equally exposed to the disease. The age characteristic of patients is represented by persons of 20–29 and 30–39 years of age. An increase in the number of patients over a 7-year period was noted in May and November. Such countries as Thailand (37%), Vietnam (13,9%) and India (9,3%) were the predominant tourist destinations. Besides, single infections occurred in 13 countries of the Asian, African and American regions. The primary diagnosis in 50,3% of patients referred to hospital were acute respiratory diseases, combined with diarrhea and other manifestations. Clinical manifestations fit into 5 syndromes, which pass with a variety of symptoms, complicating both clinical diagnosis and laboratory confirmation of the diagnosis. Imported dengue fever is characterized by combined infections caused by pathogens of acute intestinal diseases, cytomegalovirus, hemorrhagic fever with renal syndrome, West Nile fever, hepatitis A, Legionella and Plasmodium malaria. In General, combined infection was detected in 39.5% of patients.
About the Authors
V. V. NechaevRussian Federation
Saint-Petersburg
I. I. Yarovaya
Russian Federation
Saint-Petersburg
G. V. Kachenya
Russian Federation
Saint-Petersburg
E. V. Doguzhieva
Russian Federation
Saint-Petersburg
S. S. Buntovskya
Russian Federation
Saint-Petersburg
A. D. Egorickhina
Russian Federation
Saint-Petersburg
R. S. Shkurskaya
Russian Federation
Saint-Petersburg
I. G. Chkhindzeria
Russian Federation
Saint-Petersburg
N. E. Chunaeva
Russian Federation
Saint-Petersburg
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Review
For citations:
Nechaev V.V., Yarovaya I.I., Kachenya G.V., Doguzhieva E.V., Buntovskya S.S., Egorickhina A.D., Shkurskaya R.S., Chkhindzeria I.G., Chunaeva N.E. Clinical-epidemiological characteristics delivery cases of tropic dengue fever. Journal Infectology. 2021;13(1):78-85. (In Russ.) https://doi.org/10.22625/2072-6732-2021-13-1-78-85