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Radiation-Associated Herpes Zoster: A Clinical Case.
Cureus
December 2024
Dermatology and Venereology, Medical University of Plovdiv, Plovdiv, BGR.
Herpes zoster (HZ) is a viral infection caused by the reactivation of endogenous and latent varicella-zoster virus that remains dormant in the cranial nerve or dorsal root ganglia. HZ occurs in a portion of the general population, with a higher incidence observed in high-risk individuals. Patients with impaired immunity, including human immunodeficiency virus infection, organ transplantation, old age, and cancer-related treatments such as chemotherapy (CT) and radiotherapy (RT) were found more prone to HZ infection.
View Article and Find Full Text PDFQuantifying Plasmodium vivax radical cure efficacy: a modelling study integrating clinical trial data and transmission dynamics.
Lancet Infect Dis
January 2025
Institut Pasteur, Université Paris Cité, G5 Épidémiologie et Analyse des Maladies Infectieuses, Paris, France. Electronic address:
Background: Plasmodium vivax forms dormant liver stages (hypnozoites) that can reactivate weeks to months after primary infection. Radical cure requires a combination of antimalarial drugs to kill both the blood-stage and liver-stage parasites. Hypnozoiticidal efficacy of the liver-stage drugs primaquine and tafenoquine cannot be estimated directly because hypnozoites are undetectable.
View Article and Find Full Text PDFRole of sex hormones in the reactivation of Toxocara canis larvae in pregnant bitches.
Vet Parasitol
January 2025
Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Km. 2.5 Carretera Cuautitlán-Teoloyucan S/N, Cuautitlán Izcalli, MEX 54714, Mexico. Electronic address:
Based on an exhaustive review, a theory was proposed with an immunoendocrine perspective on the reactivation of dormant Toxocara canis larvae in pregnant bitches and their transmission to fetuses through the placenta, or milk and colostrum to puppies. A historical review was carried out on the reactivation of dormant larvae of T. canis in pregnant bitches which suggested that larval reactivation of T.
View Article and Find Full Text PDFUnravelling malaria latency: parasite intrinsic and environmental factors influencing dormant liver stages.
Trends Parasitol
January 2025
Department of Molecular Biology, Radboud University, 6525GA, Nijmegen, The Netherlands. Electronic address:
Hypnozoites - dormant Plasmodium parasites in the liver - can cause relapse infections and form a major obstacle to malaria eradication. The mechanisms controlling dormancy remain poorly understood, but hypnozoite formation and reactivation is likely regulated by a combination of parasite intrinsic factors and external stimuli. We reviewed current knowledge of Plasmodium dormancy and drew parallels with dormancy in other parasites and life-cycle stages.
View Article and Find Full Text PDFAtypical Presentation of Painless Herpes Zoster in an Elderly Male: A Case Report.
Cureus
December 2024
Infectious Disease, Staten Island University Hospital, Staten Island, USA.
Shingles, also known as herpes zoster, is a reactivation of the chickenpox virus that causes a painful, blistering rash. After a chickenpox infection, the virus lies dormant in nerve cells. When reactivated, usually in older adults or those with weakened immune systems, it travels along nerves, typically affecting a single strip of skin called a dermatome.
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