Characterization of an Unusual Mesenchymal Tumor in the Proventriculus of a Free-ranging Red-tailed Hawk (Buteo jamaicensis)

2019 ◽  
Vol 33 (3) ◽  
pp. 296
Author(s):  
Peach Van Wick ◽  
Byunghak Kang ◽  
Lisa M. Mangus ◽  
Ernesto Dominguez-Villegas
2017 ◽  
Vol 37 (12) ◽  
pp. 1514-1518
Author(s):  
Ayisa R. de Oliveira ◽  
Emy Hiura ◽  
Flaviana L. Guião-Leite ◽  
Mayra C. Flecher ◽  
Fábio R. Braga ◽  
...  

ABSTRACT: Prosthenorchis elegans is an acanthocephalan intestinal parasite reported in neotropical primates. Despite parasitism by P. elegans having already been described in wild marmosets in the Brazilian Atlantic Forest, there are no reports of this infection in wild Geoffroy’s marmoset (Callithrix geofroyi). The aim of this study is to report one case of P. elegans parasitism in a free-ranging C. geoffroyi from Brazilian Atlantic Forest in Espírito Santo state, and characterize the pathological and parasitological findings of this infection. One Geoffroy’s marmoset necropsied at the Vila Velha University’s Veterinary Pathology Laboratory presented intense chronic transmural ulcerative enteritis associated with twenty cylindrical helminths present in the jejunum and ileum. We can conclude that parasitism by P. elegans occurs in free-ranging groups of Geoffroy’s marmosets. Its infection produced severe intestinal lesions even in free-ranging marmoset and therefore is a threat to this animal’s survival in wildlife and can have some impact on primate conservation in the Brazilian Atlantic Forest.


2020 ◽  
Vol 7 ◽  
Author(s):  
Örjan Johansson ◽  
Karin Ullman ◽  
Purevjav Lkhagvajav ◽  
Marc Wiseman ◽  
Jonas Malmsten ◽  
...  

Parasitology ◽  
2007 ◽  
Vol 134 (11) ◽  
pp. 1559-1565 ◽  
Author(s):  
J. P. DUBEY ◽  
L. APPLEWHAITE ◽  
N. SUNDAR ◽  
G. V. VELMURUGAN ◽  
L. A. BANDINI ◽  
...  

SUMMARYThe prevalence ofToxoplasma gondiiin free-ranging chickens (Gallus domesticus) is a good indicator of the prevalence ofT. gondiioocysts in the soil because chickens feed from the ground. The prevalence ofT. gondiiin 76 free-range chickens from Guyana, South America was determined. Antibodies toT. gondiiwere assayed by the modified agglutination test (MAT), and found in 50 (65·8%) of 76 chickens with titres of 1:5 in four, 1:10 in one, 1:20 in five, 1:40 in seven, 1:80 in six, 1:160 in eight, 1:320 in four, 1:640 or higher in 15. Hearts and brains of 26 chickens with titres of <1:5 were pooled in 5 batches and bioassayed in mice. Hearts and brains of 50 chickens with titres of 1:5 or higher were bioassayed in mice.Toxoplasma gondiiwas isolated by bioassay in mice from 35 chickens with MAT titres of 1:20 or higher. All mice inoculated with tissues of 30 infected chickens remained asymptomatic.Toxoplasma gondiiisolates from 35 chickens were genotyped using 11 PCR-RFLP markers including SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, a new SAG2, and Apico. A total of 9 genotypes were identified, with 5 genotypes (nos 1, 4, 5, 6 and 7) unique to Guyana, 2 genotypes (nos 2 and 3) previously identified in chickens from Brazil, 1 genotype (no. 8) previously identified in chickens from Brazil, Costa Rica and Nicaragua, and 1 genotype (no. 9) belonging to the clonal type III lineage that exists globally. Infection with 2 genotypes was found from 1 chicken. This is the first report of genetic characterization ofT. gondiiisolates from any host from Guyana.


2016 ◽  
Vol 47 (1) ◽  
pp. 56-75 ◽  
Author(s):  
Carmen M. H. Colitz ◽  
Michael T. Walsh ◽  
Stephen D. McCulloch

2019 ◽  
Vol 263 ◽  
pp. 98-101 ◽  
Author(s):  
Thaís C.S. Rodrigues ◽  
Kuttichantran Subramaniam ◽  
Stephen D. McCulloch ◽  
Juli D. Goldstein ◽  
Adam M. Schaefer ◽  
...  

2000 ◽  
Vol 74 (24) ◽  
pp. 11993-11999 ◽  
Author(s):  
Vincent Lacoste ◽  
Philippe Mauclere ◽  
Guy Dubreuil ◽  
John Lewis ◽  
Marie-Claude Georges-Courbot ◽  
...  

ABSTRACT Recent serological and molecular surveys of different primate species allowed the characterization of several Kaposi's sarcoma-associated herpesvirus (KSHV) homologues in macaques, African green monkeys, chimpanzees, and gorillas. Identification of these new primate rhadinoviruses revealed the existence of two distinct genogroups, called RV1 and RV2. Using a degenerate consensus primer PCR method for the herpesvirus DNA polymerase gene, the presence of KSHV homologues has been investigated in two semi-free-ranging colonies of eight drill (Mandrillus leucophaeus), five mandrill (Mandrillus sphinx), and two hybrid (Mandrillus leucophaeus-Mandrillus sphinx) monkeys, living in Cameroon and Gabon, Central Africa. This search revealed the existence of not only two distinct KSHV homologues, each one belonging to one of the two rhadinovirus genogroups, but also of two new betaherpesvirus sequences, one being close to cytomegaloviruses and the other being related to human herpesviruses 6 and 7 (HHV-6 and -7). The latter viruses are the first simian HHV-6 and -7 homologues identified to date. These data show that mandrill and drill monkeys are the hosts of at least four novel distinct herpesviruses. Moreover, mandrills, like macaques and African green monkeys, harbor also two distinct gamma-2 herpesviruses, thus strongly suggesting that a second gamma-2 herpesvirus, belonging to the RV2 genogroup, may exist in humans.


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