Epidemiology of Lyme Disease in a Highly Endemic European Zone

<i>Background and objective:</i> Lyme disease, also known as Lyme borreliosis (LB), is a tick-borne infectious disease caused by the spirochete bacteria Borrelia. The risk of infection depends on the geographical area, ecological factors, and human behavior. Clinical manifestations of Ly...

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Main Authors: Agnė Petrulionienė, Daiva Radzišauskienė, Arvydas Ambrozaitis, Saulius Čaplinskas, Algimantas Paulauskas, Algirdas Venalis
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1010-660X/56/3/115
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author Agnė Petrulionienė
Daiva Radzišauskienė
Arvydas Ambrozaitis
Saulius Čaplinskas
Algimantas Paulauskas
Algirdas Venalis
author_facet Agnė Petrulionienė
Daiva Radzišauskienė
Arvydas Ambrozaitis
Saulius Čaplinskas
Algimantas Paulauskas
Algirdas Venalis
author_sort Agnė Petrulionienė
collection DOAJ
description <i>Background and objective:</i> Lyme disease, also known as Lyme borreliosis (LB), is a tick-borne infectious disease caused by the spirochete bacteria Borrelia. The risk of infection depends on the geographical area, ecological factors, and human behavior. Clinical manifestations of Lyme borreliosis have a wide range, but the most frequent clinical symptom, which is also a diagnostic symptom, is a skin rash called erythema migrans (EM). The disease is very common worldwide. In Lithuania, the disease frequency is 99.9 cases per 100,000 population (Centre for Communicable Diseases and AIDS, Lithuania, 2017). The main aim of this study was to obtain the baseline characteristics of the disease regarding the infected Lithuanian population. <i>Materials and Methods:</i> We analyzed data from the Centre for Communicable Diseases and AIDS about all Lyme disease (A69.2) diagnosed patients over a three-year period (from 2014 to 2016) in Lithuania. <i>Results:</i> In 2014&#8722;2016, 7424 (crude incidence rate 85.4) cases with LB were diagnosed in Lithuania. Most of them (4633 (62.4%)) were identified in women. Older people were more likely to suffer from LB. Urban residents were 2.6 times more often affected that those living in villages. Tick bites were primarily observed in high season months, from May to September (90%), with the highest peak in July. There was a higher number of observed tick bites (<i>p</i> = 0.003) in the urban residents. Erythema migrans occurred in 75.6% LB cases, while other symptoms did not exceed a quarter of all LB cases. There were 7353 (99.6%) cases where LB was confirmed via clinical symptoms and/or laboratory tests. Also, 1720 (23.2%) patients were tested for LB immunoglobulins. <i>Conclusions:</i> This study found a high incidence of Lyme disease in Lithuania. We elucidated the baseline characteristics regarding the infected Lithuanian population which may ease medical clinicians&#8217; work on new Lyme diagnoses.
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spelling doaj.art-9788617b48d24899861d6eef4a1bd1452023-09-02T02:56:25ZengMDPI AGMedicina1010-660X2020-03-0156311510.3390/medicina56030115medicina56030115Epidemiology of Lyme Disease in a Highly Endemic European ZoneAgnė Petrulionienė0Daiva Radzišauskienė1Arvydas Ambrozaitis2Saulius Čaplinskas3Algimantas Paulauskas4Algirdas Venalis5Clinic of Rheumatology, Orthopaedics Traumatology and Reconstructive Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 01513 Vilnius, LithuaniaClinic of Infectious Diseases, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 01513 Vilnius, LithuaniaClinic of Infectious Diseases, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 01513 Vilnius, LithuaniaCentre for Communicable Diseases and AIDS, Vilnius 10105, LithuaniaDepartment of Biology, Vytautas Magnus University, 44248 Kaunas, LithuaniaState Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania<i>Background and objective:</i> Lyme disease, also known as Lyme borreliosis (LB), is a tick-borne infectious disease caused by the spirochete bacteria Borrelia. The risk of infection depends on the geographical area, ecological factors, and human behavior. Clinical manifestations of Lyme borreliosis have a wide range, but the most frequent clinical symptom, which is also a diagnostic symptom, is a skin rash called erythema migrans (EM). The disease is very common worldwide. In Lithuania, the disease frequency is 99.9 cases per 100,000 population (Centre for Communicable Diseases and AIDS, Lithuania, 2017). The main aim of this study was to obtain the baseline characteristics of the disease regarding the infected Lithuanian population. <i>Materials and Methods:</i> We analyzed data from the Centre for Communicable Diseases and AIDS about all Lyme disease (A69.2) diagnosed patients over a three-year period (from 2014 to 2016) in Lithuania. <i>Results:</i> In 2014&#8722;2016, 7424 (crude incidence rate 85.4) cases with LB were diagnosed in Lithuania. Most of them (4633 (62.4%)) were identified in women. Older people were more likely to suffer from LB. Urban residents were 2.6 times more often affected that those living in villages. Tick bites were primarily observed in high season months, from May to September (90%), with the highest peak in July. There was a higher number of observed tick bites (<i>p</i> = 0.003) in the urban residents. Erythema migrans occurred in 75.6% LB cases, while other symptoms did not exceed a quarter of all LB cases. There were 7353 (99.6%) cases where LB was confirmed via clinical symptoms and/or laboratory tests. Also, 1720 (23.2%) patients were tested for LB immunoglobulins. <i>Conclusions:</i> This study found a high incidence of Lyme disease in Lithuania. We elucidated the baseline characteristics regarding the infected Lithuanian population which may ease medical clinicians&#8217; work on new Lyme diagnoses.https://www.mdpi.com/1010-660X/56/3/115lymeborreliosiserythema migransepidemiologylithuaniaeurope
spellingShingle Agnė Petrulionienė
Daiva Radzišauskienė
Arvydas Ambrozaitis
Saulius Čaplinskas
Algimantas Paulauskas
Algirdas Venalis
Epidemiology of Lyme Disease in a Highly Endemic European Zone
Medicina
lyme
borreliosis
erythema migrans
epidemiology
lithuania
europe
title Epidemiology of Lyme Disease in a Highly Endemic European Zone
title_full Epidemiology of Lyme Disease in a Highly Endemic European Zone
title_fullStr Epidemiology of Lyme Disease in a Highly Endemic European Zone
title_full_unstemmed Epidemiology of Lyme Disease in a Highly Endemic European Zone
title_short Epidemiology of Lyme Disease in a Highly Endemic European Zone
title_sort epidemiology of lyme disease in a highly endemic european zone
topic lyme
borreliosis
erythema migrans
epidemiology
lithuania
europe
url https://www.mdpi.com/1010-660X/56/3/115
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