Coxiella burnetii(Q Fever) Seropositivity and Associated Risk Factors in Sheep and Goat Farm Workers in Ontario, Canada

2016 ◽  
Vol 16 (10) ◽  
pp. 643-649 ◽  
Author(s):  
Shannon Meadows ◽  
Andria Jones-Bitton ◽  
Scott A. McEwen ◽  
Jocelyn Jansen ◽  
Samir N. Patel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Farm Workers ◽  
Goat Farm ◽  
Associated Risk Factors

scholarly journals Q Fever: Seroprevalence, Risk Factors in Slaughter Livestock and Genotypes of Coxiella burnetii in South Africa

Pathogens ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 258
Author(s):  
Maruping Mangena ◽  
Nomakorinte Gcebe ◽  
Rian Pierneef ◽  
Peter N. Thompson ◽  
Abiodun A. Adesiyun
Keyword(s):  
Risk Factors ◽  
South Africa ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Farm Workers ◽  
Reproductive Disorders ◽  
Cross Sectional ◽  
Tissue Samples ◽  
Associated Risk Factors ◽  
Game Animals

Q fever is a neglected zoonosis in South Africa, causing significant losses in livestock and game animals through reproductive disorders. However, there are limited studies on the extent of Coxiella burnetii infections in livestock in South Africa. Further, there is also lack of knowledge about the types of C. burnetii strains that are currently circulating in the country. Therefore, a cross-sectional, abattoir-based study was conducted to determine the seroprevalence of C. burnetii and associated risk factors, and to characterize C. burnetii strains from slaughter livestock at red meat abattoirs in Gauteng, South Africa. Of the 507 animals tested, 6.9% (95% CI: 4.9–9.5%) were positive for antibodies against C. burnetii. The seroprevalence was 9.4% (31/331) in cattle, 4.3% (3/69) in sheep, and 0.9% (1/107) in pigs. Out of the 63 tissue samples from 35 seropositive animals including material from two sheep aborted fetuses from Mangaung district (Free State province), 12.7% (8/63) tested positive by IS1111 PCR. Genotyping of the eight PCR-positive tissues from eight animals by MLVA revealed two novel genotypes, not available in Coxiella MLVA databases. It is concluded that slaughter animals pose a risk of exposing abattoir and farm workers to C. burnetii in South Africa.

scholarly journals Seroprevalence of Coxiella burnetii among ewes and associated risk factors in Constantine (Northeastern Algeria)

2020 ◽  
Vol 71 (3) ◽  
pp. 2383
Author(s):  
S. HIRECHE ◽  
A. AGABOU ◽  
Ο. BOUAZIZ
Keyword(s):  
Risk Factors ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Elisa Test ◽  
Pest Infestation ◽  
Domestic Ruminants ◽  
North Eastern ◽  
Surveillance Programs ◽  
Eastern Algeria ◽  
Associated Risk Factors

Q fever is a zoonotic disease caused by the rickettsia-like Coxiella burnetii and leads to abortions and decreased reproductive performances in domestic ruminants. A serological survey, using ELISA test, was conducted to assess the prevalence of this infection in 226 ewes belonging to 39 flocks localized in Constantine (North-eastern Algeria). A pretested questionnaire has been submitted to farmers/shepherds to collect information related to relevant risk factors. Results revealed the presence of C. burnetii antibodies in 12.4% (95% CI: 8.08%−16.72%) of individual animals while 35.9% (95% CI: 21.20%−52.82%) of sampled flocks accounted at least one seropositive ewe. Significant causative associations were observed for origin of animals (χ2=14.29, P=0.001), vaccination against enterotoxaemia (χ2=12.12, P=0.002) and pox (χ2=5.30, P=0.025), access to the farm by foreign visitors (χ2=10.87, P=0.004), farmers/shepherds’ visits to other farms (χ2=6.31, P=0.021), disinfection frequency (χ2=7.98, P=0.046), pest infestation within farms (χ2=9.55, P=0.049) and abortion history (χ2=5.54, P=0.029). This recorded prevalence of Coxiella infection would indicate a possible responsibility of this agent in causing abortion and reproductive failures in the tested flocks. Implementing active surveillance programs and further investigations using more accurate analyses and including large samples of more animal species from several provinces are needed to eluci date the real occurrence and dynamics of this infection in the national livestock.

scholarly journals Coxiella burnetii (Q fever) infection in dairy cattle and associated risk factors in Latvia

2017 ◽  
Vol 145 (10) ◽  
pp. 2011-2019 ◽  
Author(s):  
A. BORODUSKE ◽  
J. TROFIMOVA ◽  
J. KIBILDS ◽  
U. PAPULE ◽  
M. SERGEJEVA ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dairy Cattle ◽  
Coxiella Burnetii ◽  
Dairy Cow ◽  
Q Fever ◽  
Scan Statistics ◽  
Serum Samples ◽  
Risk Area ◽  
Increase Risk ◽  
Associated Risk Factors

SUMMARYThe purpose of this study was to describe prevalence and spatial distribution of Coxiella burnetii infections in dairy cow sheds in Latvia and to investigate risk factors contributing to C. burnetii infections. Blood serum samples from abortion cases from 1010 sheds have been tested by ELISA for the presence of C. burnetii antibodies and bulk tank milk (BTM) samples from 252 sheds have been tested by real time polymerase chain reaction and ELISA for the presence of C. burnetii DNA and antibodies. Prevalence of C. burnetii antibody-positive sheds in cases of abortion was 13·4%. A total of 10·7% and 13·2% of dairy cow sheds tested positive for the presence of C. burnetii DNA and antibodies in BTM, respectively. Two distinct areas of clustering of test-positive dairy cattle sheds were identified by spatial scan statistics of abortion cases and randomly sampled BTM samples. Three factors were identified as significantly contributing to the risk of C. burnetii DNA presence in BTM – number of cattle in shed (>200 animals/shed) (OR 3·93), location of the shed within risk area in Northern Latvia (OR 8·29) and for the first time, purchasing cattle from abroad has been shown to significantly increase risk (OR 2·68) of C. burnetii infection in dairy cows in Latvia.

Seroprevalence and associated risk factors of Coxiella burnetii (Q fever) in goats and sheep in northern Jordan

2019 ◽  
Vol 52 (4) ◽  
pp. 1553-1559 ◽  
Author(s):  
Shawkat Q. Lafi ◽  
Abdelsalam Q. Talafha ◽  
Mohamad A. Abu-Dalbouh ◽  
Raed S. Hailat ◽  
Mohammad S. Khalifeh
Keyword(s):  
Risk Factors ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Associated Risk Factors ◽  
Northern Jordan

Coxiella burnetii in Tunisian dromedary camels (Camelus dromedarius): Seroprevalence, associated risk factors and seasonal dynamics

Acta Tropica ◽  
2018 ◽  
Vol 188 ◽  
pp. 234-239 ◽  
Author(s):  
Rachid Selmi ◽  
Aymen Mamlouk ◽  
Houcine Ben Yahia ◽  
Hedi Abdelaali ◽  
Mourad Ben Said ◽  
...  
Keyword(s):  
Risk Factors ◽  
Coxiella Burnetii ◽  
Seasonal Dynamics ◽  
Camelus Dromedarius ◽  
Dromedary Camels ◽  
Associated Risk Factors

Coxiella burnetii seroprevalence and associated risk factors in dairy and mixed cattle farms from Ecuador

2015 ◽  
Vol 118 (4) ◽  
pp. 427-435 ◽  
Author(s):  
Alfonso Carbonero ◽  
Lucía T. Guzmán ◽  
Karen Montaño ◽  
Alicia Torralbo ◽  
Antonio Arenas-Montes ◽  
...  
Keyword(s):  
Risk Factors ◽  
Coxiella Burnetii ◽  
Associated Risk Factors ◽  
Cattle Farms

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

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.

Serological survey using ELISA to determine the prevalence of Coxiella burnetii infection (Q fever) in sheep and goats in Great Britain

2015 ◽  
Vol 144 (1) ◽  
pp. 19-24 ◽  
Author(s):  
S. L. LAMBTON ◽  
R. P. SMITH ◽  
K. GILLARD ◽  
M. HORIGAN ◽  
C. FARREN ◽  
...  
Keyword(s):  
Risk Factors ◽  
Great Britain ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Spatial Clustering ◽  
Flock Size ◽  
Individual Animal ◽  
Serological Survey ◽  
Animal Testing ◽  
Sheep And Goats

SUMMARYA survey of Coxiella burnetii infection (Q fever) in sheep flocks and goat herds in Great Britain was undertaken. A total of 5791 sheep (384 flocks) and 522 goats (145 herds) were examined for C. burnetii antibodies using an ELISA. Overall, 53 sheep (37 flocks), and four goats (four herds), tested positive. Estimates of individual animal, between-flock/-herd and within-flock/-herd crude prevalences were 0·9%, 10·2% and 9·0%, respectively, for sheep, and 0·8%, 3% and 26·3%, respectively, for goats. With sheep, the likelihood of an animal testing positive increased with total flock size (P = 0·002) and number of breeding ewes in the flock (P = 0·021). It also increased with number of goats within a 10 km radius (P = 0·038). There was no evidence for spatial clustering of positive herds above that expected by chance alone. No analysis of risk factors was attempted for goats because of the paucity of positives.

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

2018 ◽  
Vol 15 (10) ◽  
pp. 2264 ◽  
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.

scholarly journals Serological evidence of Coxiella burnetii infection in cattle and farm workers: is Q fever an underreported zoonotic disease in Ecuador?

2019 ◽  
Vol Volume 12 ◽  
pp. 701-706 ◽  
Author(s):  
Gustavo Echeverría ◽  
Armando Reyna-Bello ◽  
Elizabeth Minda-Aluisa ◽  
Maritza Celi-Erazo ◽  
Lisbeth Olmedo ◽  
...  
Keyword(s):  
Coxiella Burnetii ◽  
Q Fever ◽  
Zoonotic Disease ◽  
Farm Workers ◽  
Serological Evidence
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