Clinical and laboratory characteristics of Q fever in the Novosibirsk Region
- Authors: Vyazhevich A.N.1,2, Krasnova E.I.1,2, Bondarenko E.I.3, Krinitsyna E.V.3, Khokhlova N.I.1,2, Pozdnyakova L.L.2, Provorova V.V.1,2, Kolpakova T.A.1, Poddubnaya L.V.1
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Affiliations:
- Novosibirsk State Medical University
- City Infectious Diseases Clinical Hospital № 1
- «Vector-Best»
- Issue: Vol 14, No 2 (2024)
- Pages: 38-44
- Section: Original Investigations
- URL: https://journals.eco-vector.com/2226-6976/article/view/635113
- DOI: https://doi.org/10.18565/epidem.2024.14.2.38–44
- ID: 635113
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Abstract
Objective. Characteristics of clinical symptoms of Q fever and determination of molecular genetic and serological markers of C. burnetii in patients in the Novosibirsk region hospitalized in the early stages with unspecified fever and suspected infectious diseases transmitted by ticks.
Material and methods. 830 patients hospitalized with suspected infectious diseases transmitted by ticks in the spring-summer period 2018–2022 were examined. To confirm the results of PCR analysis, positive samples containing C. burnetii DNA were amplified using fragments of the IS1111 genes and the heat shock protein B gene (htpB), followed by their sequencing. The presence of class G immunoglobulins to C.burnetii in blood serum samples of patients was detected using ELISA.
Results. All patients with Q fever had intoxication syndrome with febrile fever, 86% had hepatitis with mild-to-moderate cytolysis syndrome; 2 (14.3%) patients developed serous meningitis. Pneumonia was diagnosed in 1 (7.1%) case.
Conclusion. Diagnosis of Q fever due to the polymorphism of the clinical course is impossible without laboratory confirmation. Identification of cases of the disease in the Novosibirsk region during a comprehensive clinical and laboratory study dictates the need to include early diagnosis of Q fever in the list of mandatory tests in patients with tick bites, which is of great practical importance for timely and adequate therapy.
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About the authors
Anna N. Vyazhevich
Novosibirsk State Medical University; City Infectious Diseases Clinical Hospital № 1
Author for correspondence.
Email: dr.anna.oleynik@mail.ru
ORCID iD: 0000-0002-6387-3939
Assistant, Department of Infectious Diseases, Infectious Disease Doctor
Russian Federation, Novosibirsk; NovosibirskElena I. Krasnova
Novosibirsk State Medical University; City Infectious Diseases Clinical Hospital № 1
Email: krasnova-inf@list.ru
ORCID iD: 0000-0003-2625-5442
MD, Head, Department of Infectious Diseases, Infectious Disease Doctor
Russian Federation, Novosibirsk; NovosibirskEvgeny I. Bondarenko
«Vector-Best»
Email: bondarenko_e@vector-best.ru
ORCID iD: 0000-0002-4699-9548
Cand. Med. Sci., Researcher, PCR laboratory
Russian Federation, NovosibirskElvira V. Krinitsyna
«Vector-Best»
Email: krinitsyna@vector-best.ru
ORCID iD: 0000-0003-3979-6619
Senior Biotechnologist, Department of hepatitis C ELISA
Russian Federation, NovosibirskNatalya I. Khokhlova
Novosibirsk State Medical University; City Infectious Diseases Clinical Hospital № 1
Email: talitas@bk.ru
ORCID iD: 0000-0003-4497-3173
Cand. Med. Sci., Associate Professor, Department of Infectious Diseases
Russian Federation, Novosibirsk; NovosibirskLarisa L. Pozdnyakova
City Infectious Diseases Clinical Hospital № 1
Email: gikb1@nso.ru
Cand. Med. Sci., Doctor of the Highest Qualification Category, Chief Physician
Russian Federation, NovosibirskVeronika V. Provorova
Novosibirsk State Medical University; City Infectious Diseases Clinical Hospital № 1
Email: provorova.ydif@mail.ru
ORCID iD: 0000-0002-3475-9934
Cand. Med. Sci., Associate Professor, Department of Infectious Diseases, Doctor of the Highest Qualification Category, Infectious Disease Doctor
Russian Federation, Novosibirsk; NovosibirskTatiana A. Kolpakova
Novosibirsk State Medical University
Email: t.a.Kolpakova@yandex.ru
ORCID iD: 0000-0001-9718-2020
MD, Professor, Department of Phthisiopulmonology
Russian Federation, NovosibirskLyudmila V. Poddubnaya
Novosibirsk State Medical University
Email: ftizio12@ngs.ru
ORCID iD: 0000-0001-5494-446X
MD, Professor, Department of Phthisiopulmonology
Russian Federation, NovosibirskReferences
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