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1.
Braz. j. microbiol ; 49(4): 790-794, Oct.-Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-974287

ABSTRACT

ABSTRACT Although the use of vaccines has controlled enteric diseases in dogs in many developed countries, vaccine coverage is still under optimal situation in Brazil. There is a large population of nonimmunized dogs and few studies about the identification of the viruses associated with diarrhea. To address this situation, stool samples from 325 dogs were analyzed by polymerase chain reaction for the detection of common enteric viruses such as Canine adenovirus (CAdV), Canine coronavirus (CCoV), Canine distemper virus (CDV), Canine rotavirus (CRV) and Carnivorous protoparvovirus 1 (canine parvovirus 2; CPV-2). At least one of these species was detected in 56.6% (184/325) of the samples. The viruses detected most frequently in either diarrheic or nondiarrheic dog feces were CPV-2 (54.3% of the positive samples), CDV (45.1%) and CCoV (30.4%), followed by CRV (8.2%) and CAdV (4.9%). Only one agent was detected in the majority of the positive samples (63%), but co-infections were present in 37% of the positive samples and mainly included CDV and CPV-2. The data presented herein can improve the clinical knowledge in regions with low vaccine coverage and highlight the need to improve the methods used to control these infectious diseases in domestic dogs.


Subject(s)
Animals , Dogs , Enterovirus/isolation & purification , Dog Diseases/virology , Enterovirus Infections/veterinary , Phylogeny , Brazil , Viral Vaccines/administration & dosage , Viral Vaccines/genetics , Viral Vaccines/immunology , Enterovirus/classification , Enterovirus/genetics , Dog Diseases/immunology , Dog Diseases/prevention & control , Enterovirus Infections/immunology , Enterovirus Infections/prevention & control , Enterovirus Infections/virology , Feces/virology
2.
Braz. j. infect. dis ; 21(4): 391-395, July-Aug. 2017. tab
Article in English | LILACS | ID: biblio-888889

ABSTRACT

Abstract Background: Viral conjunctivitis are the most frequent infections in ophthalmology clinics. The diagnosis is usually relying on clinical findings and medical history. However, topical antibiotics are often used unnecessarily addition to symptomatic treatment because of unsure agents. We aimed to detect the Adenovirus, Coxsackievirus and Enterovirus from conjunctiva and pharyngeal samples of patients. Methods: The conjunctiva and pharyngeal samples of the patients with conjunctivitis were taken by Virocult transport media and kept at -80 ºC up to study day. Adenovirus spp, Enterovirus 70 and Enterovirus 71, Coxsackie A24 and Coxsackie A16 were detected by real-time PCR. Samples from healthy health care workers of ophthalmology clinic were used for control group. Results: A total of 176 samples (conjunctival and pharyngeal samples of 62 patient and 26 healthy subjects) were included. The mean age of 34 (55.7%) male and 27 (44.3%) female patients was 34 ± 17. Twenty five (40.3%) of the patients were receiving antibiotic drops at first visit. The main etiologic agent in conjunctival samples was found to be Adenovirus (46/62, 74.2%) followed by Enterovirus 70 (4/62, 6.4%) and Enterovirus 71 (4/62, 6.4%). Coxsackievirus 16 and 24 were also found in 2 patients (1/62 each, 1.6%). Pharyngeal samples were also positive for Adenovirus (20/62, 32.3%), Enterovirus 70 and 71 (7/62, 11.3% and 5/62, 8.1% respectively), Coxsackievirus 16 and 24 (2/62, 3.2% and 1/61, 1.6%). Conclusions: It is very difficult in viral conjunctivitis to make clinical differentiation caused by different agents because of common clinical signs and symptoms. In routine clinical work, the viral conjunctivitis usually related with Adenovirus. But almost one fourth of the patients' conjunctivitis were not related to Adenovirus, which shows the importance of the laboratory diagnostics. True diagnosis plays an important role on prevention of contamination and unnecessary use of antibiotics in viral conjunctivitis.


Subject(s)
Humans , Male , Female , Adult , Pharynx/virology , DNA, Viral/isolation & purification , Adenoviridae/isolation & purification , Conjunctivitis, Viral/virology , Enterovirus/isolation & purification , Case-Control Studies , Adenoviridae/classification , Adenoviridae/genetics , Polymerase Chain Reaction , Acute Disease , Prospective Studies , Enterovirus/classification , Enterovirus/genetics
3.
Pediatr. día ; 23(2): 12-14, mayo-jun. 2007.
Article in Spanish | LILACS | ID: lil-547359

ABSTRACT

Los enterovirus son una gran cantidad de agentes que pueden producir diferentes patologías. En los años 2005 y 2006 se presentó un brote de meningitis viral por echovirus en la IX región de Chile, lo que motivó la investigación y posterior publicación del tema. Es importante la prevención de infecciones con medidas higiénicas adecuadas en la comunidad y los médicos deben conocer estos agentes para evitar tratamientos antibióticos y hospitalizaciones innecesarias que aumentan el riesgo de infecciones resistentes o intrahospitalarias.


Subject(s)
Humans , Adult , Middle Aged , Enterovirus Infections/classification , Enterovirus Infections/diagnosis , Enterovirus Infections/therapy , Enterovirus/classification , Enterovirus Infections/epidemiology
4.
Medicina (B.Aires) ; 67(2): 113-119, 2007. tab, graf
Article in Spanish | LILACS | ID: lil-480607

ABSTRACT

El presente estudio describe los resultados de la investigación de los enterovirus humanos (HEV) mediante cultivo celular y reacción en cadena de la polimerasa y su tipificación molecular en 2167 casos de parálisis fláccida aguda, meningitis aséptica y encefalitis aguda, obtenidos entre 1991 y 1998 en la Argentina. La frecuencia de detección de HEV en parálisis fláccida aguda fue 19.5% (130/666) y de poliovirus Sabin 5.4% (36/666). La tasa de detección de HEV en los casos de meningitis fue 28.8% (231/801) y en encefalitis 3.0% (21/700). El grupo etario más afectado por las meningitis fue entre 1 y 9 años (75.3%) y en los casos de parálisis fláccida aguda, de 1 a 4 años (58%). En muestras de brotes de meningitis se identificó echovirus (E) 4, E9, E30 y E17, y en casos esporádicos virus coxsackie A (CAV) 2, B (CBV) 2 y CBV5, E7, E11, E19, E24 y E29, y enterovirus (EV) 71. Finalmente, en casos de encefalitis se detectó E4, E7 y E24. En casos de parálisis fláccida aguda se identificaron 28 serotipos distintos de enterovirus no polio. En la Argentina y en otros países latinoamericanos existe escasa información acerca de la circulación de los HEV y su relación con diversas enfermedades neurológicas. Este estudio proporciona información que puede servir como base para posteriores investigaciones.


This report describes the results of human enterovirus (HEV) detection and characterization using cell culture, polymerase chain reaction and molecular typing in 2167 samples obtained from acute flaccid paralysis, aseptic meningitis and acute encephalitis patients, from 1991 to 1998 in Argentina. HEV were isolated in 130 out of 666 cases (19.5%) and 36 out of 666 (5.4%). HEV RNA was detected in 28.8% (231/801) and 3.0% (21/700) of the patients with meningitis and encephalitis, respectively. Children with ages ranging from 1 to 9 years accounted for 75.3% of the meningitis cases and from 1 to 4 years for 58% of acute flaccid paralysis patients. Echovirus 4 (E4), E9, E30 and E17 were identified from meningitis outbreaks. Coxsackievirus A2 (CAV2), CBV2, CBV5, E7, E11, E19, E24, E29 and enterovirus 71 were recovered only from sporadic cases. Three different serotypes were identified in encephalitis patients: E4, E7 and E24. A total of 28 different serotypes of non-polio enteroviruses were detected from acute flaccid paralysis cases. The information here presented contributes to improving our knowledge about enteroviruses epidemiology in Argentina and their relationship with different neurological diseases. This study provides valuable data that could be useful to further research.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Disease Outbreaks , Enterovirus , Enterovirus Infections/epidemiology , Meningitis, Aseptic/epidemiology , Paralysis/epidemiology , Argentina/epidemiology , Cell Culture Techniques , Coxsackievirus Infections/diagnosis , Coxsackievirus Infections/epidemiology , Enterovirus B, Human/isolation & purification , Enterovirus Infections/complications , Enterovirus/classification , Enterovirus/genetics , Enterovirus/isolation & purification , Feces/virology , Genome, Viral , Molecular Epidemiology , Meningitis, Aseptic/diagnosis , Meningitis, Aseptic/virology , Polymerase Chain Reaction , Paralysis/diagnosis , Paralysis/virology , Serotyping , Statistics, Nonparametric
5.
Rev. Soc. Bras. Med. Trop ; 38(5): 391-395, set.-out. 2005. tab
Article in Portuguese | LILACS | ID: lil-409472

ABSTRACT

Com o objetivo de isolar e identificar os sorotipos de enterovírus, agentes etiológicos mais freqüentes da síndrome de meningite asséptica, foram estudadas amostras de líquor de pacientes da unidade de saúde de referência da Cidade de Belém-PA, do período de março de 2002 a março de 2003. As amostras foram inoculadas em cultivos celulares RD e HEp-2, e as positivas identificadas por neutralização ou imunofluorescência indireta. De 249 amostras, 33 (13,2 por cento) foram positivas sendo 57,6 por cento (n=19) em pacientes menores de 11 anos (p<0,03) e predominantemente (72,7 por cento) naqueles do sexo masculino (p<0,008). Os sorotipos isolados foram: Echovírus 30 (n=31), Coxsackievírus B5 (n=1) e Echovírus 30 e 4. Em conclusão, estudos deste tipo servem também para melhor compor o quadro nacional, ainda pouco definido, sobre os agentes enterovirais mais prevalentes em casos de SMA.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Enterovirus Infections/virology , Enterovirus/classification , Meningitis, Aseptic/virology , Cross-Sectional Studies , Enterovirus Infections/classification , Enterovirus/isolation & purification , Meningitis, Aseptic/classification
6.
Santafé de Bogotá; s.n; abr. 1998. 95 p. ilus, tab.
Thesis in Spanish | LILACS | ID: lil-278181

ABSTRACT

Las parálisis fláccidas agudas (PFA) tienen una amplia variedad de orígenes y de agentes causales: físicos (traumas), fisiopatológicos (Accidente cerebro vascular (ACV), tóxicos (drogas o químicos) e infecciosos (bacterias y virus). Entre estos últimos, el virus salvaje de la poliomielitis y el enterovirus 71 (EV71), son los agentes virales más frecuentes. Con la no-detección de poliovirus salvaje autóctono como agente causal de enfermedad paralítica en Colombia desde junio de 1991 y aislamientos de virus No-polio en el 20.84 por ciento del total de casos de PFA notificados anualmente, se quiso conocer el papel que jugan los enterovirus en la incidencia de parálisis fláccida Aguda y la dinámica de circulación y distribución de los mismos en Colombia, para lo cual, se revisó la base de datos epidemiológicos y clínicos de los casos notificados al programa de erradicación de la poliomielitis en Colombia a partir del 1º de enero de 1992 al 31 de diciembre de 1995. Se clasificaron los casos con base en la presencia de parálisis residual y la entidad clínica de descarte según valoración y clasificación realizada por el Grupo de control de patologías del Ministerio de Salud, el Programa Ampliado de Inmunizaciones (PAI), la Organización Panamericana de la Salud y la Organización Mundial de la Salud (OPS/OMS). Durante estos cuatro años, el Sistema de Vigilancia Epidemiológica de las parálisis fláccideas, notificó 856 casos en menores de 15 años, de los cuales, 346 (40.42 por ciento) presentaron paralisis residual, 331 (95.6 por ciento) tuvieron muestras de heces para estudio virológico. Se seleccionaron los casos con estudio virológico para Enterovirus (incluyendo poliovirus) y se encontró que las patologías más frecuentes fueron (Síndrome de Guillaín Barré, neuropatía periférica, encefalitis y meningitis virales, hemiplejía infantil aguda, esclerosis múltiple, mielitis transversa y mielopatías, miositis, polimiositis, monoparesia y dermatomiositis. De estos, 69 casos (20.84 por ciento) tuvieron aislamiento de virus No polio. En 16 casos (4.8 por ciento el aislamiento fue un poliovirus vacunal, 5 de los cuales (1.2 por ciento) se asociaron a poliomielitis paralítica post-vacunal. Se realizó identificación de serotipos mediante neutralización con mezclas de antisueros anti-enterovirus de Lim & Benyesh-Melnick -LBM- (40,41) y caracterización molecular mediante reacción en cadena de la polimerasa -PCR- utilizando primers complementarios a la región VP1 del...


Subject(s)
Humans , Academic Dissertations as Topic , Enterovirus/classification , Enterovirus/genetics , Paralysis/epidemiology , Poliovirus/isolation & purification , Poliovirus/pathogenicity , Muscle Hypotonia
7.
Southeast Asian J Trop Med Public Health ; 1974 Dec; 5(4): 477-9
Article in English | IMSEAR | ID: sea-35496
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