Toxoplasma gondii isolates can be grouped into 3 genetic lineages. Type I isolates are considered more virulent in outbred mice and have been isolated predominantly from clinical cases of human toxoplasmosis, whereas types II and III isolates are considered less virulent for mice and are found in humans and food animals. Little is known of genotypes of T. gondii isolates from wild animals. In the present report, genotypes of isolates of T. gondii from wildlife in the United States are described. Sera from wildlife were tested for antibodies to T. gondii with the modified agglutination test, and tissues from animals with titers of 1:25 (seropositive) were bioassayed in mice. Toxoplasma gondii was isolated from the hearts of 21 of 34 seropositive white-tailed deer (Odocoileus virginianus) from Mississippi and from 7 of 29 raccoons (Procyon lotor); 5 of 6 bobcats (Lynx rufus); and the gray fox (Urocyon cinereoargenteus), red fox (Vulpes vulpes), and coyote (Canis latrans) from Georgia. Toxoplasma gondii was also isolated from 7 of 10 seropositive black bears (Ursus americanus) from Pennsylvania by bioassay in cats. All 3 genotypes of T. gondii based on the SAG2 locus were circulating among wildlife.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1645/GE-110R | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Ivermectin Related Compound Moxidectin Can Target Apicomplexan Importin α and Limit Growth of Malarial Parasites.
Cells
January 2025
Nuclear Signaling Laboratory, Monash Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia.
Signal-dependent transport into and out of the nucleus mediated by members of the importin (IMP) superfamily is crucial for eukaryotic function, with inhibitors targeting IMPα being of key interest as anti-infectious agents, including against the apicomplexan species and , causative agents of malaria and toxoplasmosis, respectively. We recently showed that the FDA-approved macrocyclic lactone ivermectin, as well as several other different small molecule inhibitors, can specifically bind to and inhibit and IMPα functions, as well as limit parasite growth. Here we focus on the FDA-approved antiparasitic moxidectin, a structural analogue of ivermectin, for its IMPα-targeting and anti-apicomplexan properties for the first time.
View Article and Find Full Text PDFSeroepidemiology, molecular detection, and isolation attempts of Toxoplasma gondii in dairy goats from Rio de Janeiro, Brazil.
Vet Res Commun
January 2025
Laboratório de Protozoologia, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brasil.
Goats are the one of the most susceptible domestic species to toxoplasmosis affecting animal health and production. The present study aimed to determine the seroprevalence of T. gondii infection in dairy goats from Rio de Janeiro, Brazil, as well as to evaluate associated risk factors, parasitic DNA detection in raw goat milk samples, and attempts to isolate the parasite from raw goat milk samples.
View Article and Find Full Text PDFConstruction and biological function of gene knockout strain.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
August 2024
Department of Parasitology, School of Basic Medical Sciences, Central South University, Changsha 410013.
Objectives: Toxoplasmosis is a zoonotic parasitic disease caused by (), which can lead to complications such as encephalitis and ocular toxoplasmosis. The disease becomes more severe when the host's immune system is compromised. Rhoptry proteins are major virulence factors that enable to invade host cells.
View Article and Find Full Text PDFDetection of Echinococcus spp. and other taeniid species in lettuces and berries: Two international multicenter studies from the MEmE project.
Int J Food Microbiol
January 2025
Anses, Nancy Laboratory for Rabies and Wildlife, Malzéville, France.
Cystic and alveolar echinococcosis are severe zoonotic diseases characterized by long asymptomatic periods lasting months or years. Viable Echinococcus spp. eggs released into the environment through the feces of canids can infect humans through accidental ingestion via hand-to-mouth contact or consumption of contaminated food or water.
View Article and Find Full Text PDFPublic Health.
Alzheimers Dement
December 2024
MRC Unit for Lifelong Health & Ageing at UCL, London, United Kingdom.
Background: Associations of common infections with Alzheimer's disease have been reported, but potential mechanisms underlying these relationships are unclear. A hypothesised mechanism is amyloid-beta (Aβ) aggregation as a defense mechanism in response to infection, with subsequent tau accumulation. However, no studies have assessed associations of infections with cerebral Aβ and tau pathology in vivo.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!