scholarly journals Red and Fallow Deer Determine the Density of Ixodes Ricinus Nymphs Containing Anaplasma Phagocytophilum

2020 ◽  
Author(s):  
Katsuhisa Takumi ◽  
Tim Hofmeester ◽  
Hein Sprong
Keyword(s):  
Ixodes Ricinus ◽  
Cervus Elaphus ◽  
Anaplasma Phagocytophilum ◽  
Roe Deer ◽  
Ecological Factors ◽  
Principal Component ◽  
Fallow Deer ◽  
Forest Sites ◽  
Free Ranging ◽  
Larval Burden

Abstract Background: The density of Ixodes ricinus nymphs infected with Anaplasma phagocytophilum is one of the parameters that determines the risk for humans and domesticated animals to contract anaplasmosis. For this, I. ricinus larvae need to take a blood meal from free-ranging ungulates, which are competent hosts for A. phagocytophilum.Methods: Here, we compared the contribution of four free-ranging ungulate species, red deer (Cervus elaphus), fallow deer (Dama dama), roe deer (Capreolus capreolus), and wild boar (Sus scrofa) to A. phagocytophilum infections in nymphs. We used a combination of camera and live trapping to quantify the relative availability of vertebrate hosts to questing ticks in nineteen Dutch forest sites. Additionally, we collected questing I. ricinus nymphs and tested these for the presence of A. phagocytophilum. Furthermore, we explored two potential mechanisms that could explain differences between species: 1) differences in larval burden, which we based on data from published studies, and 2) differences in associations with other, non-competent hosts.Results: Principal component analysis indicated that the density of A. phagocytophilum infected nymphs (DIN) was higher in forest sites with high availability of red and fallow deer, and to a lesser degree roe deer. Initial results suggest that these differences are not a result of differences in larval burden, but rather differences in associations with other species or other ecological factors.Conclusions: These results indicate that the risk for contracting anaplasmosis in the Netherlands is likely highest in the few areas where red and fallow deer are present. Future studies are needed to explore the mechanisms behind this association.

scholarly journals Red and fallow deer determine the density of Ixodes ricinus nymphs containing Anaplasma phagocytophilum

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Katsuhisa Takumi ◽  
Tim R. Hofmeester ◽  
Hein Sprong
Keyword(s):  
Ixodes Ricinus ◽  
Cervus Elaphus ◽  
Anaplasma Phagocytophilum ◽  
Roe Deer ◽  
Ecological Factors ◽  
Principal Component ◽  
Fallow Deer ◽  
Forest Sites ◽  
Free Ranging ◽  
Larval Burden

Abstract Background The density of Ixodes ricinus nymphs infected with Anaplasma phagocytophilum is one of the parameters that determines the risk for humans and domesticated animals to contract anaplasmosis. For this, I. ricinus larvae need to take a bloodmeal from free-ranging ungulates, which are competent hosts for A. phagocytophilum. Methods Here, we compared the contribution of four free-ranging ungulate species, red deer (Cervus elaphus), fallow deer (Dama dama), roe deer (Capreolus capreolus), and wild boar (Sus scrofa), to A. phagocytophilum infections in nymphs. We used a combination of camera and live trapping to quantify the relative availability of vertebrate hosts to questing ticks in 19 Dutch forest sites. Additionally, we collected questing I. ricinus nymphs and tested these for the presence of A. phagocytophilum. Furthermore, we explored two potential mechanisms that could explain differences between species: (i) differences in larval burden, which we based on data from published studies, and (ii) differences in associations with other, non-competent hosts. Results Principal component analysis indicated that the density of A. phagocytophilum-infected nymphs (DIN) was higher in forest sites with high availability of red and fallow deer, and to a lesser degree roe deer. Initial results suggest that these differences are not a result of differences in larval burden, but rather differences in associations with other species or other ecological factors. Conclusions These results indicate that the risk for contracting anaplasmosis in The Netherlands is likely highest in the few areas where red and fallow deer are present. Future studies are needed to explore the mechanisms behind this association.

scholarly journals Anaplasma phagocytophilum and Babesia Species of Sympatric Roe Deer (Capreolus capreolus), Fallow Deer (Dama dama), Sika Deer (Cervus nippon) and Red Deer (Cervus elaphus) in Germany

Pathogens ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 968
Author(s):  
Cornelia Silaghi ◽  
Julia Fröhlich ◽  
Hubert Reindl ◽  
Dietmar Hamel ◽  
Steffen Rehbein
Keyword(s):  
Cervus Elaphus ◽  
Anaplasma Phagocytophilum ◽  
Red Deer ◽  
Sika Deer ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Cervus Nippon ◽  
Fallow Deer ◽  
Babesia Species ◽  
Free Ranging

(1) Background: Wild cervids play an important role in transmission cycles of tick-borne pathogens; however, investigations of tick-borne pathogens in sika deer in Germany are lacking. (2) Methods: Spleen tissue of 74 sympatric wild cervids (30 roe deer, 7 fallow deer, 22 sika deer, 15 red deer) and of 27 red deer from a farm from southeastern Germany were analyzed by molecular methods for the presence of Anaplasma phagocytophilum and Babesia species. (3) Results: Anaplasma phagocytophilum and Babesia DNA was demonstrated in 90.5% and 47.3% of the 74 combined wild cervids and 14.8% and 18.5% of the farmed deer, respectively. Twelve 16S rRNA variants of A. phagocytophilum were delineated. While the infection rate for A. phagocytophilum among the four cervid species was similar (71.4% to 100%), it varied significantly for Babesia between roe deer (73.3%), fallow deer (14.3%), sika deer (27.3%) and red deer (40.0%). Deer ≤2 years of age tested significantly more often positive than the older deer for both A. phagocytophilum and Babesia species. (4) Conclusions: This study confirms the widespread occurrence of A. phagocytophilum and Babesia species in wild cervids and farmed red deer in Germany and documents the co-occurrence of the two tick-borne pathogens in free-ranging sika deer.

scholarly journals Relative Importance of Ixodes ricinus and Ixodes trianguliceps as Vectors for Anaplasma phagocytophilum and Babesia microti in Field Vole (Microtus agrestis) Populations

2008 ◽  
Vol 74 (23) ◽  
pp. 7118-7125 ◽  
Author(s):  
K. J. Bown ◽  
X. Lambin ◽  
G. R. Telford ◽  
N. H. Ogden ◽  
S. Telfer ◽  
...  
Keyword(s):  
United Kingdom ◽  
Ixodes Ricinus ◽  
Anaplasma Phagocytophilum ◽  
Babesia Microti ◽  
Infection Prevalence ◽  
Microtus Agrestis ◽  
Relative Importance ◽  
The United Kingdom ◽  
Ixodes Trianguliceps ◽  
Larval Burden

ABSTRACT The importance of Ixodes ricinus in the transmission of tick-borne pathogens is well recognized in the United Kingdom and across Europe. However, the role of coexisting Ixodes species, such as the widely distributed species Ixodes trianguliceps, as alternative vectors for these pathogens has received little attention. This study aimed to assess the relative importance of I. ricinus and I. trianguliceps in the transmission of Anaplasma phagocytophilum and Babesia microti among United Kingdom field voles (Microtus agrestis), which serve as reservoir hosts for both pathogens. While all instars of I. trianguliceps feed exclusively on small mammals, I. ricinus adults feed primarily on larger hosts such as deer. The abundance of both tick species and pathogen infection prevalence in field voles were monitored at sites surrounded with fencing that excluded deer and at sites where deer were free to roam. As expected, fencing significantly reduced the larval burden of I. ricinus on field voles and the abundance of questing nymphs, but the larval burden of I. trianguliceps was not significantly affected. The prevalence of A. phagocytophilum and B. microti infections was not significantly affected by the presence of fencing, suggesting that I. trianguliceps is their principal vector. The prevalence of nymphal and adult ticks on field voles was also unaffected, indicating that relatively few non-larval I. ricinus ticks feed upon field voles. This study provides compelling evidence for the importance of I. trianguliceps in maintaining these enzootic tick-borne infections, while highlighting the potential for such infections to escape into alternative hosts via I. ricinus.

scholarly journals Observations on autochtonous liver flukes in wild ruminants in Slovakia

2017 ◽  
Vol 54 (4) ◽  
pp. 307-313
Author(s):  
A. Iglódyová ◽  
P. Lazar ◽  
J. Čurlík ◽  
R. Karolová ◽  
J. Ciberej ◽  
...  
Keyword(s):  
Cervus Elaphus ◽  
Red Deer ◽  
Roe Deer ◽  
Fasciola Hepatica ◽  
Slovak Republic ◽  
Capreolus Capreolus ◽  
Fallow Deer ◽  
Wild Ruminants ◽  
Faecal Samples ◽  
Liver Flukes

SummaryThe aim of the study was monitoring of liver flukes in wild ruminants including red deer (Cervus elaphus), roe deer (Capreolus capreolus), fallow deer (Dama dama) and mouflon (Ovis musimon) in selected regions of Slovak Republic. Between 2014 – 2016 we examined 782 faecal samples from selected wild ruminants using coprological techniques and serological methods (ELISA detection ofF. hepaticacoproantigens). None of the samples was positive for the presence ofFasciola hepatica, 5.89 % of faecal samples were positive forDicrocoelium dendriticum. Higher prevalence was recorded in mouflon (30.83 %), lower in red deer (1.49 %).D. dendriticuminfection was not determined in fallow deer and roe deer. The seasonal distribution of dicrocoeliosis indicated a highest prevalence in autumn. Significantly higher prevalence was recorded in fenced rearing when compared with open hunting grounds, suggesting that animal agglomeration, constant use of the same areas and possible stress are the main risk factors. Parasitological examination of livers of hunted wild ruminants revealed dicrocoeliosis in mouflon.

Real-time PCR for detection and quantification of red deer (Cervus elaphus), fallow deer (Dama dama), and roe deer (Capreolus capreolus) in meat mixtures

Meat Science ◽  
2008 ◽  
Vol 79 (2) ◽  
pp. 289-298 ◽  
Author(s):  
Violeta Fajardo ◽  
Isabel González ◽  
Irene Martín ◽  
María Rojas ◽  
Pablo E. Hernández ◽  
...  
Keyword(s):  
Real Time ◽  
Cervus Elaphus ◽  
Real Time Pcr ◽  
Red Deer ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Fallow Deer ◽  
Dama Dama ◽  
Detection And Quantification

scholarly journals Wild ungulates in Jordan: past, present, and forthcoming opportunities

2021 ◽  
Vol 13 (9) ◽  
pp. 19338-19351
Author(s):  
Ehab Eid ◽  
David Mallon
Keyword(s):  
Cervus Elaphus ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Fallow Deer ◽  
Current Status ◽  
Wild Ungulates ◽  
Equus Hemionus ◽  
Wild Ass ◽  
In The Wild ◽  
Arabian Oryx

Twelve species of ungulates are reported from the wild in Jordan. Three of these, Addax nasomaculatus (Addax), Bos primigenius (Aurochs), and Cervus elaphus (Red Deer) are known only from archaeological excavations. Dama mesopotamica (Mesopotamian Fallow Deer), Oryx leucoryx (Arabian Oryx) and Equus hemionus hemippus (Syrian Wild Ass) have been regionally extirpated in the wild. A semi-captive population of Persian Onager (E. h. hemionus) is held in Shumari Wildlife Reserve. The Arabian Oryx is also managed in semi-captive conditions in two reserves. Except the commonly occurring Wild Boar (Sus scrofa), other surviving ungulate species continue to be under serious threat. Gazella gazella (Palestinian Mountain Gazelle), Capreolus capreolus (European Roe Deer), Gazella marica (Arabian Sand Gazelle), and Gazella dorcas (Dorcas Gazelle) are Critically Endangered, and Capra nubiana (Nubian Ibex) is Endangered in the region. This paper provides a review of the historical and current status of wild ungulates in Jordan, listing the threats and conservation measures and provides recommendations for management and conservation in the future.

PCR-RFLP Authentication of Meats from Red Deer (Cervus elaphus), Fallow Deer (Dama dama),Roe Deer (Capreolus capreolus), Cattle (Bos taurus), Sheep (Ovis aries), and Goat (Capra hircus)

2006 ◽  
Vol 54 (4) ◽  
pp. 1144-1150 ◽  
Author(s):  
Violeta Fajardo ◽  
Isabel González ◽  
Inés López-Calleja ◽  
Irene Martín ◽  
Pablo E. Hernández ◽  
...  
Keyword(s):  
Cervus Elaphus ◽  
Red Deer ◽  
Roe Deer ◽  
Bos Taurus ◽  
Capreolus Capreolus ◽  
Fallow Deer ◽  
Ovis Aries ◽  
Capra Hircus ◽  
Dama Dama ◽  
Pcr Rflp

scholarly journals Evaluation of the CervidTB STAT-PAK for the Detection of Mycobacterium bovis Infection in Wild Deer in Great Britain

2009 ◽  
Vol 16 (10) ◽  
pp. 1449-1452 ◽  
Author(s):  
S. Gowtage-Sequeira ◽  
A. Paterson ◽  
K. P. Lyashchenko ◽  
S. Lesellier ◽  
M. A. Chambers
Keyword(s):  
United Kingdom ◽  
Mycobacterium Bovis ◽  
Cervus Elaphus ◽  
Roe Deer ◽  
Fallow Deer ◽  
Serum Samples ◽  
Deer Species ◽  
The United Kingdom ◽  
Wild Deer ◽  
Culture Positive

ABSTRACT Deer are acknowledged as hosts of Mycobacterium bovis, the causative agent of bovine tuberculosis (bTB), and determining the prevalence of infection in deer species is one of the key steps in understanding the epidemiological role played by cervids in the transmission and maintenance of bTB in the United Kingdom. This study evaluated a rapid lateral-flow test for the detection of bTB in samples from wild deer species in the United Kingdom. Fallow deer (Dama dama), roe deer (Capreolus capreolus), and red deer (Cervus elaphus) from areas in Wales, the Cotswolds, and southwestern England were necropsied for a bTB survey. Serum samples from individual deer were tested with the CervidTB STAT-PAK, and the results were evaluated against the culture of M. bovis from tissues (n = 432). Sensitivity and specificity were 85.7% (95% confidence interval [CI], 42.1 to 99.6%) and 94.8% (95% CI, 92.3 to 96.7%), respectively, with an odds ratio of 109.9 (95% CI, 12.7 to 953.6%) for a positive STAT-PAK result among culture-positive deer. The low prevalence of infection (3.8%, n = 860) affected the confidence of the sensitivity estimate of the test, but all culture-positive fallow deer (n = 6) were detected by the test. In addition, antibodies to M. bovis could be detected in poor-quality serum samples. The results suggest that the CervidTB STAT-PAK could be deployed as a field test for further evaluation.

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