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Screening for Coxiella burnetii seroprevalence in chronic Q fever high-risk groups reveals the magnitude of the Dutch Q fever outbreak.

The Netherlands experienced an unprecedented outbreak of Q fever between 2007 and 2010. The Jeroen Bosch Hospital (JBH) in 's-Hertogenbosch is located in the centre of the epidemic area. Based on Q fever screening programmes, seroprevalence of IgG phase II antibodies to Coxiella burnetii in the JBH catchment area was 10·7% [785 tested, 84 seropositive, 95% confidence interval (CI) 8·5-12·9]. Seroprevalence appeared not to be influenced by age, gender or area of residence. Extrapolating these data, an estimated 40 600 persons (95% CI 32 200-48 900) in the JBH catchment area have been infected b…

The 2007–2010 Q fever epidemic in The Netherlands: characteristics of notified acute Q fever patients and the association with dairy goat farming.

We describe the Q fever epidemic in the Netherlands with emphasis on the epidemiological characteristics of acute Q fever patients and the association with veterinary factors. Data from 3264 notifications for acute Q fever in the period from 2007 through 2009 were analysed. The patients most affected were men, smokers and persons aged 40–60 years. Pneumonia was the most common clinical presentation (62% in 2007 and 2008). Only 3.2% of the patients were working in the agriculture sector and 0.5% in the meat-processing industry including abattoirs. Dairy goat farms with Coxiella burnetii-induced…

Acute Q fever in southern Taiwan: atypical manifestations of hyperbilirubinemia and prolonged fever.

The clinical information of acute Q fever in Taiwan was limited. A clinical study of 109 adults with serologically documented acute Q fever in the past decade (1994-2005) at 3 referral hospitals in southern Taiwan was reported. Their clinical manifestations, laboratory findings, and clinical outcomes were analyzed. Males predominated (98, 90%). There is a significant correlation between monthly average temperature and case numbers of acute Q fever (r = 0.74, P = 0.006). Fever (99%), chills (69%), and headache (45%) were the common symptoms, and relative bradycardia (44/60, 73 %) was often note…

Granulomatous hepatitis caused by Q fever: a differential diagnosis of fever of unknown origin.

The differential diagnosis of fever of unknown origin (FUO) includes infectious, neoplastic, rheumaticinflammatory and miscellaneous diseases. We report the case of a 35-year-old man with FUO caused by Q fever. A liver biopsy showed the characteristic fibrin-ring lipogranulomas compatible with Q fever. The serologic tests confirmed the diagnosis of acute infection by Coxiella burnetii. The therapeutic response was excellent. In conclusion, we described a patient with acute Q fever and granulomatous hepatitis.

Острая Q лихорадка после трансплантации почек: доклад по делу.

Цели/заземленные пациенты, получающие трансплантацию почек, испытывают иммуноусилительное воздействие, что повышает риск бактериальных, вирусных, грибковых и паразитарных инфекций. Q лихорадка — это потенциально смертельное инфекционное заболевание, которое затрагивает иммунокомпромиссных реципиентов почечной трансплантации и имеет серьезные последствия для почек донора. В марте 2021 года пациент с острой лихорадкой Q после трансплантации почек был доставлен в больницу Цинхуа Чангунг в Пекине, Китай. Последовательность следующего поколения (NGS) использовалась для диагностики температуры Q у п

Совпадение в аннотации оригинала
Aims/Background Patients receiving kidney transplant experience immunosuppression, which increases the risk of bacterial, viral, fungal, and parasitic infections. Q fever is a potentially fatal infectious disease that affects immunocompromised renal transplant recipients and has implications in terms of severe consequences for the donor's kidney. Case Presen…

Innovative antigens for more accurate diagnosis of Q fever.

Coxiella burnetii, the causative agent of Q fever, poses a significant public health concern worldwide. Diagnosis primarily relies on serological tests. Traditional antigen production methods, typically involving embryonated hen eggs, are labor-intensive, costly, and require biosafety level 3 facilities. In this study, we tested inactivated whole-cell antigens (SAP9 and NMII/AP9) from C. burnetii strains grown in axenic media, offering a safer and more efficient alternative to egg-based production. These antigens were validated using an in-house ELISA method against human patient sera, demonst…

Raw Equid Milk: A Potential Risk for Q Fever?

Equid milk (donkey or mare) has traditionally been consumed raw or fermented due to its distinctive chemical composition, which closely resembles human milk, and its nutritional benefits. Nowadays, interest in it is increasing, despite limited research on its microbiological risk. Coxiella burnetii (C. burnetii), a globally re-emerging zoonotic agent, has rarely been investigated in equid milk. The objective of this study was to demonstrate the applicability of selected analytical methods for detecting C. burnetii in raw equid milk. A commercial molecular assay was tested on three serial dilut

Asymptomatic bilateral acute multifocal retinitis in Q fever endocarditis.

A previously healthy cattle farmer in his 40s presented with fever, encephalopathy and hepatitis secondary to acute Coxiella burnetii endocarditis. Dilated funduscopy unexpectedly disclosed bilateral acute multifocal retinitis that was clinically silent yet exhibited inner-retinal hyper-reflectivity on spectral-domain optical coherence tomography. Treatment with doxycycline 100 mg two times per day and weight-adjusted hydroxychloroquine 200 mg three times per day led to complete anatomical and functional recovery by month 10, confirmed by serial imaging. This report emphasises that routine fun

Environmental risk factors of human Q fever in Spain.

INTRODUCTION: Q fever is a zoonotic disease caused by Coxiella burnetii, primarily transmitted to humans via airborne from livestock such as cattle, sheep and goats, though the pathogen is also found in other domestic and wild species. There is limited information on how environmental factors, including climate or livestock-related influence transmission risk in endemic areas. This study aims to assess the impact of these factors in Spain, the European country with the highest annual Q fever notifications. METHODS: An ecological epidemiological study was conducted to evaluate Q fever risk in …

Q fever, a rare cause of secondary hemophagocytic lymphohistiocytosis.

Hemophagocytic lymphohistiocytosis (HLH) is a rare syndrome in which Coxiella burnetii is a very infrequent etiology. We present the case of a 62-year-old male with progressive pulmonary infiltrates, fever, hepatitis, and bicytopenia despite broad spectrum antibiotics. A thorough clinical evaluation led to a high suspicion of Coxiella burnetii infection, subsequently confirmed through a positive serum polymerase chain reaction (PCR) analysis. HLH diagnosis was established based on the fulfillment of 5/8 diagnostic criteria, obviating the need for a bone marrow biopsy. Targeted antibiotic treat