(1)Laboratório de Raiva e Encefalites Virais, Instituto Biológico de São Paulo, São Paulo, SP, Brasil. [email protected] This study was aimed to. (2)Laboratório de Raiva e Encefalites Virais, Instituto Biológico, São Paulo, SP, Brazil. (3)Departamento de Estatística, Universidade Federal de Mato Grosso. Craniectomia descompressiva para encefalite viral: relato de dois casos. Ricardo Lourenço . 9 Silva GMM. Encefalites Virais Agudas.

Author: Moogular Monos
Country: Benin
Language: English (Spanish)
Genre: History
Published (Last): 6 September 2005
Pages: 355
PDF File Size: 5.19 Mb
ePub File Size: 15.53 Mb
ISBN: 762-1-80358-216-7
Downloads: 86775
Price: Free* [*Free Regsitration Required]
Uploader: Dolkree

Serologic diagnosis of influenza virus infections by hemagglutination inhibition. At the time of blood sampling, a questionnaire about health variables was applied covering the animal’s zoo technical data, the type of management adopted on the ranch, and measures were employed to prevent infectious diseases. The Brazilian equine industry is an important segment of agribusiness, employing over one million people in over activities that range from saddle manufacturing to equestrian tourism 6.

The glucose level is normal in the majority of cases. This model showed that the highest proportion of seropositive animals lived in non-flooded areas and that the presence of EIAV positive animals was negatively correlated to the presence of EIV seropositivity on the ranches Fig. Beyond the neonatal period, CMV encephalitis is extremely uncommon in immunocompetent patients.

Pathogenicity of different rabies virus isolates and protection test in vaccinated mice.

World Health Organization; The prevalence of antibodies against EIV was estimated at Human herpesvirus 6 is associated with focal encephalitis.

Symptoms include behavioral changes, intellectual decline, ataxia, spasticity, and seizures. Dengue fever begins after an incubation period of 2 to 7 days, characterized by fever, headache, myalgia, arthralgia, prostration, abdominal discomfort, and rash. vriais

Despite intense vaccination programs adopted by veterinarians and breeders, equine influenza caused by subtype H3N8 still leads to severe economic losses in several regions around the world. PCR is more sensitive than viral cultures for diagnosis, but most of the studies were conducted in patients with EV meningitis Measles inclusion body encephalitis is a rapidly progressive dementia illness, with behavior changes, myoclonus, focal or generalized seizures, delirium, and coma developing 1 to 6 months after measles exposure in individuals with deficiency in cell-mediated immunity.


Other neurological complications reported are ascending paralysis, bulbar syndromes, Parkinsonism features, and sensorineural hearing loss. This controversial finding is probably due to the low density of the equine populations living on small ranches.

Clinical condition deteriorates rapidly and brain MRI shows bilateral necrosis of thalami and other regions, including the cerebral white matter, cerebellum, and brainstem. An abruptly onset of fever and altered mental status is observed in majority of patients. A year old HIV-infected man presented in May with anxious disorders, psychomotor agitation, discrete memory impairment, and visual hallucination started 2 weeks before admission.

The evaluation of absolute data demonstrated that the associated variables were: Diagnosis of herpes simplex encephalitis: Neurologic complications of influenza. Prevalence values were calculated separately for individual animals and ranches herds. Noteworthy, it is estimated that even in the Occident, the larger, undiagnosed proportion of encephalitis cases are caused by one of the arboviruses.

Services on Demand Journal. Mixed ischemic and hemorrhagic infarcts in subcortical gray and white matter and demyelinate lesions are noted both in brain MRI and pathological studies.

Early stage is marked by behavioral or personality changes and declining school performance. ReadCube Visualizar o texto. In contrast, ranches located in flooded areas showed the lowest rates of EIV seropositivity, including a negative correlation between EIAV prevalence and antibodies against EIV in herds. J Neurol Sci ; After infection, symptoms and signs of a systemic viral disease appear 2 to 14 days after, and in about half of the patients a rash maculopapular is observed.

These results are in agreement with the epidemiological features of equine influenza, for which aggregations of animals are considered a risk factor for infection. Thus, the initial model tested was represented by Formula 6.

These findings coincide with those reported by DIEL virias al. Patients over 65 years of age and those with flaccid paralysis are at greater risk of death.


Pathogenicity of different rabies virus isolates and protection test in vaccinated mice.

Blood samples were collected between January and July by jugular venipuncture, using 21G needles suitable for vacuum tubes. Nowadays, seizures are the most common neurologic complication, occurring as febrile seizures in children, as exacerbations in epileptic patients, or as a result of other influenza-induced neurologic disease.

The pathogenesis is related to defective measles virus maturation in neural cells. One quarter of patients have brainstem involvement with vertical or horizontal gaze-evoked nystagmus, internuclear ophtalmoplegia, and cranial neuropathies While systemic viral infections are exceptionally common, symptomatic viral infections of the brain parenchyma itself are very rare, but a serious neurologic condition.

Measles Four CNS syndromes are associated with measles: Laboratory techniques in rabies.

Seropositivity was also associated with the absence of vaccination against encephalomyelitis, rabies and herpes virus in the surveyed herds. Clinical and radiological picture is similar to paraneoplastic and anti-voltage-gated potassium channel limbic encephalitis. He was discharged of this hospital with 2 mg daily of risperidone and with a psychiatric consultation scheduled within 6 weeks.

The value of W was obtained considering all the ranches as neighbors, since their borders could not be determined, and the weight of the neighborhood as the inverse of the viraks between ranches as their geographical coordinates. There are two major clinical presentations for human rabies, the encephalitic form and the paralytic form Daniels for their technical support. Considered together, arboviruses represent the leading cause of encephalitis worldwide.

When inoculated intramuscularly, the pathogenicity observed showed different death rates: Affected patients are usually young children that present fever, myoclonus, ataxia, nystagmus, and cranial nerve palsies.