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Virus
Virus à ARN
Retroviridae
Lentivirus
Lentivirus ovins-caprins
Virus maedi-visna
Virus maedi-visna : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"@type": "Question",
"name": "Comment diagnostiquer une infection par le virus maedi-visna ?",
"position": 1,
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"text": "Le diagnostic repose sur des tests sérologiques et des analyses PCR pour détecter le virus."
}
},
{
"@type": "Question",
"name": "Quels tests sont utilisés pour le virus maedi-visna ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les tests ELISA et PCR sont couramment utilisés pour identifier le virus dans le sang."
}
},
{
"@type": "Question",
"name": "Les symptômes aident-ils au diagnostic ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes cliniques comme la pneumonie et l'encéphalite orientent le diagnostic."
}
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{
"@type": "Question",
"name": "Peut-on diagnostiquer le virus chez les animaux asymptomatiques ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des tests sérologiques peuvent détecter le virus même sans symptômes visibles."
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{
"@type": "Question",
"name": "Quelle est l'importance du diagnostic précoce ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un diagnostic précoce permet de mieux gérer la maladie et de limiter sa propagation."
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{
"@type": "Question",
"name": "Quels sont les symptômes principaux du virus maedi-visna ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes incluent toux, difficultés respiratoires et troubles neurologiques."
}
},
{
"@type": "Question",
"name": "Les symptômes varient-ils selon l'âge des moutons ?",
"position": 7,
"acceptedAnswer": {
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"text": "Oui, les jeunes animaux peuvent présenter des symptômes plus graves que les adultes."
}
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{
"@type": "Question",
"name": "Y a-t-il des symptômes neurologiques associés ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des signes neurologiques comme des tremblements et des troubles de la coordination peuvent apparaître."
}
},
{
"@type": "Question",
"name": "Les symptômes sont-ils toujours présents ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, certains animaux peuvent être porteurs sans montrer de symptômes cliniques."
}
},
{
"@type": "Question",
"name": "Comment évoluent les symptômes au fil du temps ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes peuvent s'aggraver progressivement, menant à des complications graves."
}
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{
"@type": "Question",
"name": "Comment prévenir l'infection par le virus maedi-visna ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "La prévention passe par l'isolement des animaux infectés et des pratiques d'élevage saines."
}
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{
"@type": "Question",
"name": "Les tests de dépistage sont-ils efficaces ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le dépistage régulier des troupeaux permet de détecter et d'éliminer les animaux infectés."
}
},
{
"@type": "Question",
"name": "Quelles mesures d'hygiène sont recommandées ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des mesures d'hygiène strictes, comme le nettoyage des équipements, sont essentielles."
}
},
{
"@type": "Question",
"name": "Les animaux doivent-ils être vaccinés ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Bien qu'il n'y ait pas de vaccin, la vaccination contre d'autres maladies est recommandée."
}
},
{
"@type": "Question",
"name": "Comment gérer les nouveaux animaux dans un troupeau ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les nouveaux animaux doivent être testés et mis en quarantaine avant d'intégrer le troupeau."
}
},
{
"@type": "Question",
"name": "Quel est le traitement principal pour le virus maedi-visna ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de traitement spécifique; la gestion des symptômes est essentielle."
}
},
{
"@type": "Question",
"name": "Peut-on utiliser des antiviraux contre ce virus ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Actuellement, il n'y a pas d'antiviraux efficaces spécifiquement pour le virus maedi-visna."
}
},
{
"@type": "Question",
"name": "Comment gérer les animaux infectés ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les animaux infectés doivent être isolés et traités symptomatiquement pour améliorer leur confort."
}
},
{
"@type": "Question",
"name": "Y a-t-il des vaccins disponibles ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de vaccin commercialement disponible contre le virus maedi-visna."
}
},
{
"@type": "Question",
"name": "Quel rôle joue la nutrition dans le traitement ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une bonne nutrition peut aider à renforcer le système immunitaire des animaux infectés."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec le virus maedi-visna ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent pneumonie chronique et encéphalite, pouvant être mortelles."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles fréquentes ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les complications sont courantes chez les animaux infectés, surtout sans traitement."
}
},
{
"@type": "Question",
"name": "Comment les complications affectent-elles la production ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications peuvent réduire la productivité des animaux, affectant la rentabilité de l'élevage."
}
},
{
"@type": "Question",
"name": "Les complications sont-elles réversibles ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines complications peuvent être gérées, mais beaucoup sont irréversibles et graves."
}
},
{
"@type": "Question",
"name": "Quel est le pronostic pour les animaux infectés ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le pronostic dépend de la gravité des symptômes; beaucoup développent des complications graves."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque d'infection ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent l'âge, le stress, et la densité de population dans le troupeau."
}
},
{
"@type": "Question",
"name": "Le stress augmente-t-il le risque d'infection ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress peut affaiblir le système immunitaire, augmentant le risque d'infection."
}
},
{
"@type": "Question",
"name": "Les races de moutons sont-elles affectées différemment ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines races peuvent être plus susceptibles à l'infection en raison de leur génétique."
}
},
{
"@type": "Question",
"name": "L'environnement joue-t-il un rôle dans l'infection ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un environnement surpeuplé et insalubre favorise la propagation du virus."
}
},
{
"@type": "Question",
"name": "Les pratiques d'élevage influencent-elles le risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des pratiques d'élevage inadéquates augmentent le risque de transmission du virus."
}
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HLA-mismatched hematopoietic stem cell micro-transplantation (MST) is an effective treatment for older patients (≥60 years) with acute myeloid leukemia. Donor selection for MST is broad, ranging from ...
Genetic diagnostic methods for evaluation of chimerism after HSCT, such as STR-PCR and XY-FISH, have limited sensitivity. When donor chimerism is in the micro range (< 1%), deviations in the accuracy ...
Next-generation sequencing (NGS) is used to monitor genetically measurable residual disease (gMRD) following allogeneic stem cell transplantation (aSCT). It is unknown whether an upper limit of chimer...
Allogeneic hematopoietic stem cell transplantation (Allo-HSCT), proposed to patients with high-risk myeloid malignancies, may ultimately fail because of disease relapse. Bone marrow (BM) CD34...
Treatment targeting CD19 by a chimeric antigen receptor expressed on T cells (anti-CD19 CAR-T) has led to a breakthrough in the management and treatment of relapsed and refractory B- cell acute lympho...
After allogeneic stem cell transplantation (alloSCT), patient-derived stem cells that survived the pretransplantation conditioning compete with engrafting donor stem cells for bone marrow (BM) repopul...
The value of routine chimerism determination after myeloablative hematopoietic cell transplantation (HCT) is unclear, particularly in the setting of anti-thymocyte globulin (ATG)-based graft-versus-ho...
Blood samples were collected at 3 months post-HCT from 558 patients who received myeloablative conditioning and ATG-based GVHD prophylaxis. Chimerism was assessed using multiplex polymerase chain reac...
Incomplete (<95%) T-cell chimerism and leukemia lineage chimerism were present in 17% and 4% of patients, respectively. Patients with incomplete T-cell chimerism had a significantly greater incidence ...
High post-transplant ATG exposure and non-D+R+ CMV serostatus predispose patients to incomplete T-cell chimerism, which is associated with an increased risk of relapse. The increased risk of cGVHD wit...
Full donor T-cell chimerism (FDTCC) after allogeneic stem cell transplant (allo-SCT) has been associated with improved outcomes in hematologic malignancy. We studied if donor human leukocyte antigen (...
Pure red cell aplasia (PRCA) is a serious complication after ABO-mismatched allogeneic hematopoietic stem cell transplantation (HSCT). Following HSCT, persistent anti-donor isohemagglutinins against d...
Monitoring of donor chimerism (DC) may detect early relapse following allogeneic hematopoietic stem cell transplantation (allo-SCT) for acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS). ...