Coxiella burnetii infection in humans: to what extent do cattle in infected areas free from small ruminants play a role?

Abstract Domestic ruminants (cattle, goats and sheep) are considered to be the main reservoirs for human Coxiella burnetii infection. However, there is still a need to assess the specific contribution of cattle. Indeed, most seroprevalence studies in humans were carried out in areas comprising both cattle and small ruminants, the latter being systematically implicated in human Q fever outbreaks. Therefore, we conducted a cross-sectional study in areas where C. burnetii infection in cattle was endemic, where the density of cattle and small ruminant farms were respectively high and very low. The aim was to estimate the seroprevalence rates among two occupational (cattle farmers and livestock veterinarians), and one non-occupational (general adult population) risk groups. Sera were collected in 176 cattle farmers, 45 veterinarians and 347 blood donors, and tested for phase I and II antibodies using immunofluorescence assay. Seroprevalence rates were 56.3% among cattle farmers, 88.9% among veterinarians and 12.7% among blood donors. This suggests that a specific risk for acquiring C. burnetii infection from cattle in endemically infected areas exists, mainly for occupational risk groups, but also for the general population. Further research is needed to identify risk factors for C. burnetii infection in humans in such areas.

Download Full-text

Seroreactivity and Risk Factors Associated with Coxiella burnetii Infection among Cattle Slaughterhouse Workers in South Korea

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph15102264 ◽

2018 ◽

Vol 15 (10) ◽

pp. 2264 ◽

Cited By ~ 2

Author(s):

Ji-Hyuk Park ◽

Seon Hwang ◽

Dilaram Acharya ◽

Seung Lee ◽

Kyu Hwang ◽

...

Keyword(s):

Risk Factors ◽

South Korea ◽

Coxiella Burnetii ◽

Q Fever ◽

Close Contact ◽

Cross Sectional Study ◽

Immunofluorescence Assay ◽

Cross Sectional ◽

Factors Associated ◽

Related Risk

Q fever, caused by Coxiella burnetii, is a zoonotic disease that is an occupational hazard to people who work in close contact with animals or their carcasses. A nationwide serologic study among cattle slaughterhouse workers who were presumed to be at risk of having C. burnetii infection in South Korea was performed to investigate the seroreactivity of C. burnetii infection and identify related risk factors. Out of 1017 cattle slaughterhouse workers in South Korea, 923 (90.8%) participated in this cross-sectional study. Samples were tested for immunoglobulin G (IgG) and M (IgM) antibodies against phase II C. burnetii via indirect immunofluorescence assay. The overall seroreactivity, defined as IgG or IgM antibody titer cutoffs ≥1:16, was 9.1% (84/923). Additionally, a significant association was found between the seroreactivity of C. burnetii infection and performing carcass evisceration work (odds ratio, 2.36; 95% confidence interval, 1.39–4.03) in multivariate analysis. To diminish C. burnetii infection, cattle slaughterhouse workers need to take precautions during the evisceration process.

Download Full-text

Association of Dietary and Lifestyle Inflammation Score With Metabolic Syndrome in a Sample of Iranian Adults

Frontiers in Nutrition ◽

10.3389/fnut.2021.735174 ◽

2021 ◽

Vol 8 ◽

Author(s):

Fatemeh Dehghani Firouzabadi ◽

Ahmad Jayedi ◽

Elaheh Asgari ◽

Zahra Akbarzadeh ◽

Nasim Janbozorgi ◽

...

Keyword(s):

Metabolic Syndrome ◽

Adult Population ◽

Positive Association ◽

Population Based ◽

Cross Sectional Study ◽

Significant Positive Association ◽

Cross Sectional ◽

General Adult Population ◽

Education Status ◽

Inflammation Score

Objective: We aimed to evaluate the association between the dietary and lifestyle inflammation score (DLIS) and metabolic syndrome (MetS) and its components in a sample of Iranian adults.Design: Population-based cross-sectional study.Setting: General adult population living in Tehran, Iran.Subjects: We included 827 adult men and women with an age range of 18–59 years who were referred to health centers in different districts of Tehran, Iran. Dietary intake was assessed by a semiquantitative food frequency questionnaire with 168 items. The DLIS was calculated based on four components, including dietary inflammation score, physical activity, cigarette smoking, and general obesity. Higher DLIS represents a more proinflammatory diet and lifestyle. The odds ratio (OR) and 95% confidence interval (CI) of the MetS across quartiles of the DLIS was calculated by using logistic regression analysis, controlling for age, sex, energy intake, marital status, education status, and occupation.Results: A total of 827 participants (31% men) were included, with a mean age of 44.7 ± 10.7 years. The prevalence of the MetS was 30.5%. The DLIS ranged between −2.35 and +3.19 (mean ± SD: 0.54 ± 1.09). There was a significant positive association between the DLIS and odds of MetS (OR fourthvs.thefirstquartile: 1.57, 95% CI: 1.01–2.45) in the fully adjusted model.Conclusion: Our results showed a significant positive association between the DLIS and odds of MetS. The results of the present crosssectional study suggested that having a more proinflammatory lifestyle can be associated with MetS. More prospective studies are needed to confirm the findings.

Download Full-text

Seroprevalence of Coxiella burnetii in sheep flocks in Kaduna State, Northwestern Nigeria

Acta Veterinaria Hungarica ◽

10.1556/004.2021.00034 ◽

2021 ◽

Author(s):

Shuaibu Gidado Adamu ◽

Junaidu Kabir ◽

Jarlath Udo Umoh ◽

Mashood Abiola Raji

Keyword(s):

Risk Factors ◽

Coxiella Burnetii ◽

Q Fever ◽

Jugular Vein ◽

Cross Sectional Study ◽

Enzyme Linked Immunosorbent Assay ◽

Sectional Study ◽

High Seroprevalence ◽

Cross Sectional ◽

Significant Difference

Abstract A cross-sectional study was carried out to determine the seroprevalence and risk factors of Q fever in sheep in the northern part of Kaduna State, Nigeria. This study aimed to determine Coxiella burnetii infection and its risk factors in sheep in Kaduna State. A total of 400 blood samples consisting of 259 samples from females and 141 from males were aseptically collected from the jugular vein of sheep from flocks in Kaduna State. The sera obtained were screened for Q fever using an indirect enzyme-linked immunosorbent assay (iELISA). The obtained data were analysed to determine whether there is a relationship between sex, age, and the animals tested. The analysis revealed that 8.0% of the sera was seropositive by iELISA. There was no significant difference in Q fever seropositivity in the study area according to the sex of sheep (P > 0.05). There was a statistically significant difference (P < 0.05) in Q fever seropositivity according to the age of sheep. This study indicated a high seroprevalence of Q fever mainly among female animals and older sheep. Further studies are required to determine the epizootiology of Q fever in the study area more precisely.

Download Full-text

Seroprevalence Study of Anti-HEV IgG among Different Adult Populations in Corsica, France, 2019

Microorganisms ◽

10.3390/microorganisms7100460 ◽

2019 ◽

Vol 7 (10) ◽

pp. 460 ◽

Cited By ~ 1

Author(s):

Capai ◽

Masse ◽

Gallian ◽

Souty ◽

Isnard ◽

...

Keyword(s):

Risk Factors ◽

General Practice ◽

Blood Donors ◽

Adult Population ◽

Strong Association ◽

Hepatitis E ◽

Cross Sectional Study ◽

Antibody Detection ◽

P Value ◽

Cross Sectional

Hepatitis E virus (HEV) is a major cause of acute hepatitis worldwide. In France, hyperendemic areas including Corsica have an anti-HEV Immunoglobulin G (IgG) prevalence higher than 50%. The aim of this study was to determine the seroprevalence of anti-HEV IgG in three adult populations in Corsica and the risk factors associated with antibody detection. Between 2017 and 2019, a total of 930 individuals, including 467 blood donors, 393 students or university staff members and 70 patients from general practice, were tested for the presence of anti-HEV IgG using the Wantai HEV IgG enzyme immunoassay kit and filled a questionnaire. The association between seropositivity and potential risk factors was tested with univariate and multivariate analyses. Out of the 930 samples, 52.3% (486/930) were seropositive—54.4% (254/467) among blood donors, 47.6% (187/393) among university students and 64.3% (45/70) among patients of general practice. Three main risk factors were identified: (i) skinning and butchering (Adjusted Odds Ratio aOR = 2.76, 95% confidence interval [95% CI] [1.51–5.37]; p-value < 10−3), (ii) consumption of a local pork live raw sausage (fittonu) (aOR = 1.95 95% CI [1.45–2.64]; p-value = 10−5), and (iii) increasing age (p-value = 0.003). Seropositivity rates between the different populations were homogeneous after age stratification. This cross-sectional study indicates a high anti-HEV IgG seroprevalence in the Corsican adult population, not significantly different between women and men and increasing with age. This serosurvey also showed homogeneity regarding the exposure to HEV among three different types of populations. Finally, we confirmed the endemicity of Corsica with respect to HEV and identified a strong association between consumption of figatellu/fittonu and the practice of skinning and butchering with the detection of anti-HEV IgG.

Download Full-text

PTSD prevalence among resident mothers and their offspring in Rwanda 25 years after the 1994 genocide against the Tutsi

BMC Psychology ◽

10.1186/s40359-019-0362-4 ◽

2019 ◽

Vol 7 (1) ◽

Cited By ~ 2

Author(s):

Celestin Mutuyimana ◽

Vincent Sezibera ◽

Epaphrodite Nsabimana ◽

Lambert Mugabo ◽

Cindi Cassady ◽

...

Keyword(s):

Traumatic Event ◽

Adult Population ◽

Cross Sectional Study ◽

Ptsd Symptoms ◽

Target Groups ◽

Cross Sectional ◽

High Prevalence ◽

General Adult Population ◽

Exposure To Trauma ◽

Ptsd Prevalence

Abstract Background The 1994 Genocide against the Tutsi was a major traumatic event affecting nearly all Rwandans. Significant psychological sequels continue to occur in the population 25 years after, with a high prevalence of posttraumatic stress disorder (PTSD) found in women. Three groups are typically designated with regard to the Genocide against the Tutsi: those who were targeted and categorized as genocide “survivors,” those who were in the country during the genocide and were the “non-targeted” group, and those who were outside of the country, referred to as the “1959 returnees.” Each group experienced various traumatic events during and in the aftermath of the genocide. Offspring of the designated groups, currently exhibit symptoms of PTSD disregarding of being born in the years following the genocide. A number of studies have described the prevalence of PTSD in the general adult population. There is a lack of research comparing the prevalence of PTSD in women and their offspring among these three target groups, therefore, this study aimed to bridge the gap. Methods We conducted a comparative cross-sectional study with a sample of 432 mothers and 432 children in three categories: genocide survivors, in country non-targeted and 1959 returnees. Participant ages for children were between 14 to 22 years and for mothers, between the ages of 32 to 87 years. The UCLA-PTSD DSM-5, PTSD Check list-5 and Life events Checklist-5 were translated from English to Kinyarwanda and were used to assess exposure to trauma and the prevalence of PTSD symptoms in Rwandan mothers and their offspring. Results Key Results yield a PTSD rate of 18.8, 6.2, 5.2% within survivors, in country non-targeted, and returnees respectively with an average PTSD rate of 43.8% for parents, and 16.5% for offspring. Conclusion PTSD among the mothers’ groups and their offspring have been found, specifically in the offspring of genocide survivors. Considering these adolescents were not born at the time of the 1994 Genocide against the Tutsi, the results suggest future studies should explore the precipitating factors contributing to the PTSD symptoms within this specific group.

Download Full-text

Associations between different types and sources of dietary fibre intake and depressive symptoms in a general population of adults: a cross-sectional study

British Journal Of Nutrition ◽

10.1017/s0007114520003566 ◽

2020 ◽

pp. 1-10

Author(s):

Yang Xia ◽

Yashu Liu ◽

Shunming Zhang ◽

Qing Zhang ◽

Li Liu ◽

...

Keyword(s):

Depressive Symptoms ◽

Dietary Fibre ◽

Adult Population ◽

Depression Scale ◽

Cross Sectional Study ◽

Dietary Factors ◽

Sectional Study ◽

Cross Sectional ◽

General Adult Population ◽

Dietary Fibre Intake

Abstract This cross-sectional study aimed to examine the associations between dietary fibre (DF) intake and depressive symptoms in a general adult population in Tianjin, China. A total of 24 306 participants (mean age 41 years; range 18–91 years) were enrolled. DF intake was assessed using a validated self-administered FFQ. Depressive symptoms were assessed using the Self-Rating Depression Scale. Associations between DF intake and depressive symptoms were estimated using logistic regression analysis. Socio-demographic, behavioural, health status and dietary factors were adjusted. In men, compared with participants in the lowest quartiles for total, soluble, vegetable and soya DF, OR for depressive symptoms in the highest were 0·83 (95 % CI 0·69, 0·99), 0·74 (95 % CI 0·63, 0·87), 0·79 (95 % CI 0·65, 0·96) and 0·69 (95 % CI 0·60, 0·81), respectively. In women, compared with participants in the lowest quartiles for vegetable and soya DF, the OR for depressive symptoms in the highest were 0·77 (95 % CI 0·64, 0·93) and 0·82 (95 % CI 0·70, 0·95), respectively. No association was found between total or soluble DF intake and depressive symptoms in women. No association was found between insoluble, cereal, fruit or tuber DF intake and depressive symptoms in men and women. Linear associations between DF intake and depressive symptoms were only detected for soya DF (men, β = –0·148, P < 0·0001; women, β = –0·069, P = 0·04). Results suggest that intake of soluble, vegetable and soya DF was inversely associated with depressive symptoms. These results should be confirmed through prospective and interventional studies.

Download Full-text

Coxiella burnetii seroprevalence in primiparous and multiparous ewes from southern Australia: a cross-sectional study

10.21203/rs.3.rs-1026866/v1 ◽

2021 ◽

Author(s):

Thomas Clune ◽

Amy Lockwood ◽

Serina Hancock ◽

Andrew N. Thompson ◽

Mieghan Bruce ◽

...

Keyword(s):

Coxiella Burnetii ◽

Reproductive Performance ◽

Q Fever ◽

Cross Sectional Study ◽

Molecular Diagnostic ◽

Cross Sectional ◽

Tissue Samples ◽

Natural Exposure ◽

Reproductive Disease

Abstract Coxiella burnetii can cause reproductive disease in sheep and zoonotic Q-fever infections in humans. The role of infectious diseases including coxiellosis in causing poorer reproductive performance of primiparous ewes is not well studied. The aim of this study was to determine if natural exposure to C. burnetii is associated with poor reproductive performance of primiparous ewes and compare seroprevalence of primiparous and multiparous ewes. Coxiella burnetii seroprevalence was 0.08% (95% confidence interval 0.01, 0.36) in primiparous ewes and 0.36% (0.07, 1.14) in mature ewes. Coxiella burnetii was not detected in tissue samples from aborted or stillborn lambs using molecular diagnostic tests (qPCR). These findings suggest that C. burnetii infection was unlikely to be an important contributor to abortion and perinatal mortalities observed for primiparous ewes, and exposure to C. burnetii was not widespread in ewes on farms located over wide geographical region of southern Australia.

Download Full-text

The prevalence of rheumatoid arthritis in Spain

Scientific Reports ◽

10.1038/s41598-020-76511-6 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Lucía Silva-Fernández ◽

Cristina Macía-Villa ◽

Daniel Seoane-Mato ◽

Raúl Cortés-Verdú ◽

Antonio Romero-Pérez ◽

...

Keyword(s):

Rheumatoid Arthritis ◽

Urban Areas ◽

Adult Population ◽

Geographic Origin ◽

High Body Mass Index ◽

Population Based ◽

Cross Sectional Study ◽

Computer Assisted ◽

Cross Sectional ◽

General Adult Population

AbstractRheumatoid arthritis (RA) prevalence is believed to be around 1% worldwide, although it varies considerably among different populations. The aim of EPISER2016 study was to estimate the prevalence of RA in the general adult population in Spain. We designed a population-based cross-sectional study. A national survey was conducted between November 2016 and October 2017 involving a probabilistic sample from the general population aged 20 years or older. Subjects were randomly selected for phone screening using a computer-assisted telephone interviewer system. Positive RA screening results were evaluated by a rheumatologist. Cases fulfilled the 1987 ACR and/or the 2010 ACR/EULAR criteria; previous diagnosis established by a rheumatologist and clearly identified in medical records were also accepted regardless of the criteria used. Prevalence estimates with 95% CI were calculated taking into account the design of the sample (weighting based on age, sex, and geographic origin using as a reference the distribution of the population in Spain). 4916 subjects participated in the study and 39 RA cases were confirmed. RA estimated prevalence was 0.82% (95% CI 0.59–1.15). Mean age of RA cases was 60.48 (14.85) years, they were more frequently women (61.5%), from urban areas (74.4%), non-smokers (43.6%), and with a high body mass index (53.8% with overweight). Extrapolating to the population in Spain (approximately 37 million are ≥ 20 years old), it was estimated that there were between 220,000 and 430,000 people aged 20 years or older with RA. No undiagnosed cases were detected, which could be related to the establishment of early arthritis clinics around the country, increasing the rates of diagnosis during early phases of RA.

Download Full-text