<i>Coxiella burnetii</i>in wild mammals: A systematic review

González‐Barrio, David; Ruiz‐Fons, Francisco

doi:10.1111/tbed.13085

Cited by 70 publications

(73 citation statements)

References 98 publications

(167 reference statements)

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“…Roe deer frequented yearling grazing fields; however, their role as infection source was ruled out after testing Coxiella negative by PCR analysis of their feces (data not shown). However, 5.1% of the roe deer analyzed in the same region harbored C. burnetii DNA (37). Therefore, the role of roe deer and other wildlife species as source of C. burnetii infection as reported elsewhere (38) cannot be ignored.…”

Section: Discussionmentioning

confidence: 96%

Monitoring Coxiella burnetii Infection in Naturally Infected Dairy Sheep Flocks Throughout Four Lambing Seasons and Investigation of Viable Bacteria

et al. 2020

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Progression of Coxiella burnetii infection in four naturally infected sheep flocks, and in their farm environment, was monitored throughout four lambing seasons. Flocks with an active infection were selected based on the presence of C. burnetii DNA in bulk-tank milk (BTM) and a high seroprevalence in yearlings during the previous milking period (Spring 2015). During four consecutive lambing seasons (2015/16-2018/19), samples were collected within 1 week after each lambing period from animals (vaginal swabs, milk and feces from ewes, and yearlings) and the environment (dust indoor sheep premises). BTM samples and aerosols (outdoors and indoors) were monthly collected between lambing and the end of milking. Real-time PCR analyses showed different trends in C. burnetii shedding in the flocks, with a general progressive decrease in bacterial shedding throughout the years, interrupted in three flocks by peaks of reinfection associated with specific management practices. A significant relationship was found between C. burnetii fecal shedding and the bacterial burden detected in dust, whereas shedding by vaginal route affected the detection of C. burnetii in indoor aerosols. Three genotypes were identified: SNP8 (three flocks, 52.9% of the samples), SNP1 (two flocks, 44.8% samples), and SNP5 (one flock, two environmental samples). Coxiella burnetii viability in dust measured by culture in Vero cells was demonstrated in two of the flocks, even during the fourth lambing season. The results showed that infection can remain active for over 5 years if effective control and biosafety measures are not correctly implemented.

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Section: Discussionmentioning

confidence: 96%

Monitoring Coxiella burnetii Infection in Naturally Infected Dairy Sheep Flocks Throughout Four Lambing Seasons and Investigation of Viable Bacteria

et al. 2020

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“…Many species of wildlife have long shown evidence of exposure to C. burnetti , and some authors have made the suggestions that these species can pose greater zoonotic risks than livestock in particular environments (Enright et al., 1971; González‐Barrio & Ruiz‐Fons, 2019; Koehler, Kloppert, Hamann, El‐Sayed, & Zschöck, 2019). Multiple lines of evidence from our study confirm previous findings that macropods may be a primary reservoir host for C. burnetii (Banazis et al., 2010; Cooper et al., 2012, 2013).…”

Section: Discussionmentioning

confidence: 99%

Unravelling animal exposure profiles of human Q fever cases in Queensland, Australia, using natural language processing

Clark

Tozer

Wood

et al. 2020

Transbound Emerg Dis

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Q fever, caused by the zoonotic bacterium Coxiella burnetii, is a globally distributed emerging infectious disease. Livestock are the most important zoonotic transmission sources, yet infection in people without livestock exposure is common. Identifying potential exposure pathways is necessary to design effective interventions and aid outbreak prevention. We used natural language processing and graphical network methods to provide insights into how Q fever notifications are associated with variation in patient occupations or lifestyles. Using an 18‐year time‐series of Q fever notifications in Queensland, Australia, we used topic models to test whether compositions of patient answers to follow‐up exposure questionnaires varied between demographic groups or across geographical areas. To determine heterogeneity in possible zoonotic exposures, we explored patterns of livestock and game animal co‐exposures using Markov Random Fields models. Finally, to identify possible correlates of Q fever case severity, we modelled patient probabilities of being hospitalized as a function of particular exposures. Different demographic groups consistently reported distinct sets of exposure terms and were concentrated in different areas of the state, suggesting the presence of multiple transmission pathways. Macropod exposure was commonly reported among Q fever cases, even when exposure to cattle, sheep or goats was absent. Males, older patients and those that reported macropod exposure were more likely to be hospitalized due to Q fever infection. Our study indicates that follow‐up surveillance combined with text modelling is useful for unravelling exposure pathways in the battle to reduce Q fever incidence and associated morbidity.

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“…Since the 1980s, the knowledge of viruses associated with wild mammals has been increasing, perhaps due to the improvement of detection techniques, followed by the development of several serological and molecular tests, since they are straightforward, sensitive and specific (Schochetman, Ou, & Jones, ; Weigle, Murphy, & Brunell, ; Zambon, Hays, Webster, Newman, & Keene, ). However, it is important to note that not all serological tests are specific, due to unspecific or cross‐reaction with antibodies among other related viral species (Gónzalez‐Barrio & Ruiz‐Franco, ). To avoid that, we consider necessary to use molecular techniques as confirmatory tests.…”

Section: Discussionmentioning

confidence: 99%

What do studies in wild mammals tell us about human emerging viral diseases in Mexico?

Colunga‐Salas

Sánchez‐Montes

Grostieta

et al. 2019

Transbound Emerg Dis

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Multiple species of viruses circulate in wild mammals, some of them potentially causing zoonosis. Most of the suspected viral zoonotic diseases affecting human patients remain unidentified with regard to their aetiological agent. The aim of this study is to summarize the state of knowledge of the viral richness associated with wild mammals in Mexico throughout 1900–2018 and their relationship with human cases. We compiled two databases, one of them containing all available published studies on potentially zoonotic viruses in wild mammals and another with human cases related to zoonotic viruses. The database on wild mammals covers the period of 1900–2018; the human case database spans 2000–2013. We calculated the richness of viral potential zoonotic agents and evaluated their geographical distribution. We found 262 records of 42 potential zoonotic viral species associated with 92 wild mammal species in 28 states across Mexico. Records of human viral cases were only found in 29 states, which did not overlap with the reports in wild mammals. We detected 25.6% (42/164) of viral zoonotic agents reported worldwide. This analysis opens a relevant topic of discussion for public health attention.

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Coxiella burnetiiin wild mammals: A systematic review

Cited by 70 publications

References 98 publications

Monitoring Coxiella burnetii Infection in Naturally Infected Dairy Sheep Flocks Throughout Four Lambing Seasons and Investigation of Viable Bacteria

Monitoring Coxiella burnetii Infection in Naturally Infected Dairy Sheep Flocks Throughout Four Lambing Seasons and Investigation of Viable Bacteria

Unravelling animal exposure profiles of human Q fever cases in Queensland, Australia, using natural language processing

What do studies in wild mammals tell us about human emerging viral diseases in Mexico?

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