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2.
RGO (Porto Alegre) ; 60(1): 105-109, jan.-mar. 2012. ilus
Article in English | LILACS, BBO | ID: biblio-874555

ABSTRACT

Primary contact with the varicella-zoster virus occurs through varicella (chickenpox) and culminates with this virus entering the sensory nerves and remaining latent in the dorsal root ganglion. Transmission occurs by dissemination of infectious particles of the varicella-zoster virus by the aerosol released from nasopharyngeal secretions or skin lesions, or by direct contact with lesions. Herpes zoster occurs after clinically evident reactivation of the virus, affecting the whole distribution of the infected sensory nerve. When compared with primary infection, herpes zoster has a more severe character, requiring the use of pharmaceutical drugs. The cause of reactivation is unknown and may be associated with predisposing factors, such as age, stress or impaired immune system. This study reports a case of a patient who presented clinical manifestations compatible with varicella zoster infection exacerbated by the use of homemade remedies, resulting in a secondary infection and facial scarring.


O contato primário com o vírus varicela-zoster ocorre na varicela (catapora), culminando com a transposição desse vírus para os nervos sensitivos, onde estabelece sua latência no gânglio espinhal dorsal. A transmissão ocorre por disseminação das partículas infecciosas do vírus varicela-zoster através de aerossóis liberados a partir de secreções do nasofaringe ou lesões cutâneas ou, ainda, pelo contato direto com lesões. O herpes-zoster clinicamente evidente ocorre após a reativação do vírus, com o envolvimento da distribuição do nervo sensitivo afetado. Quando comparado com a infecção primária, o herpes-zoster desenvolve um caráter de maior severidade, sendo sempre necessária a administração de uma terapêutica medicamentosa eficaz. A causa dessa reativação é desconhecida, podendo estar relacionada a fatores predisponentes como a faixa etária, estresse ou imunodeficiências. Neste trabalho relata-se um caso clínico em que a paciente apresentou manifestações clínicas condizentes com um quadro característico de infecção por varicela-zoster, complicado por uso de medicação caseira, resultando em infecção secundária e cicatrizes faciais.


Subject(s)
Female , Adult , Herpes Zoster/diagnosis , Herpes Zoster/pathology , Chickenpox/diagnosis , Chickenpox/pathology , Chickenpox/therapy , Chickenpox/virology
3.
Braz. j. infect. dis ; 12(4): 313-315, Aug. 2008. ilus
Article in English | LILACS | ID: lil-496770

ABSTRACT

Since the introduction of varicella vaccination in India, surveillance of circulating VZV strains has gained significance. Differentiating wild-type VZV strains from the Oka vaccine strain can be achieved only by molecular genotyping methods. The development of PCR methods for VZV strain differentiation has been hampered by the fact that the VZV genome is highly conserved. We used VZV ORF 62 PCR-RFLP analysis to identify and differentiate wild-type VZV strains in India from the Oka vaccine strain. Digestion of VZV ORF 62 amplicons with SmaI, enabled accurate strain differentiation; the Oka strain was positive for three SmaI sites, compared to two SmaI sites in the wild-type VZV strains that we tested.


Subject(s)
Humans , Chickenpox Vaccine/immunology , Chickenpox/virology , Herpes Zoster/virology , /genetics , Open Reading Frames/genetics , Chickenpox Vaccine/genetics , Chickenpox/immunology , DNA, Viral/analysis , Genotype , Herpes Zoster/immunology , /classification , /immunology , India , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length
4.
Braz. j. infect. dis ; 9(3): 262-265, Jun. 2005. ilus
Article in English | LILACS | ID: lil-412885

ABSTRACT

We report two cases of varicella pneumonia in immunocompetent patients, with emphasis on high-resolution computer tomography manifestations. The predominant findings consisted of multiple bilateral nodules, ranging from 1-10 mm in diameter, with or without a surrounding halo of ground-glass attenuation. Other findings include ground-glass opacities, focal areas of consolidation and small pleural effusions.


Subject(s)
Humans , Female , Adult , Chickenpox , Pneumonia, Viral , Tomography, X-Ray Computed/methods , Acyclovir/therapeutic use , Antiviral Agents/therapeutic use , Chickenpox/drug therapy , Chickenpox/virology , Immunocompromised Host , Pneumonia, Viral/drug therapy , Pneumonia, Viral/virology
5.
Arq. bras. oftalmol ; 58(4): 277-8, ago. 1995.
Article in Portuguese | LILACS | ID: lil-260475

ABSTRACT

Apresenta-se um paciente com AIDS e retinite por varicella-zoster vírus (P.O.R.N. syndrome), com descolamento total de retina em olho esquerdo e pequena área de necrose retiniana periférica em olho direito. Foi realizado vitrectomia, endofotocoagulação e injeção de óleo de silicone na cavidade vítrea precocemente no olho direito e aciclovir EV (30 mg/dia) como tentativa de prevenir o descolamento de retina e a progressão da síndrome neste olho. No pós operatório imediato a visão do paciente era de 20/20. No entanto, em 21 dias a visão era de vultos nos dois olhos e 45 dias após o paciente retornava amaurótico.


Subject(s)
Humans , Male , Adult , Acquired Immunodeficiency Syndrome/complications , Retinal Necrosis Syndrome, Acute/surgery , Vitrectomy , Chickenpox/virology , Herpesvirus 3, Human , Retinal Detachment
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