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Your search keyword '"Erna G Kroon"' showing total 5 results
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5 results on '"Erna G Kroon"'

1. Reemergence of vaccinia virus during Zoonotic outbreak, Pará State, Brazil

Author

Felipe L. de Assis, Wagner M. Vinhote, José D. Barbosa, Cairo H.S. de Oliveira, Carlos M.G. de Oliveira, Karinny F. Campos, Natália S. Silva, Giliane de Souza Trindade, Erna G. Kroon, and Jonatas S. Abrahão

Subjects
Microbiology (medical), Genes, Viral, Epidemiology, viruses, Pará State, lcsh:Medicine, Cattle Diseases, Vaccinia virus, orthopoxvirus, Virus, Microbiology, lcsh:Infectious and parasitic diseases, Disease Outbreaks, chemistry.chemical_compound, Veterinary virology, Vaccinia, Amazon Region, Animals, Humans, lcsh:RC109-216, Orthopoxvirus, Geography, Medical, Smallpox vaccine, Phylogeny, reemergence, biology, lcsh:R, Dispatch, Outbreak, biology.organism_classification, Virology, zoonoses, Infectious Diseases, chemistry, Cattle, Brazil
Abstract

In 2010, vaccinia virus caused an outbreak of bovine vaccinia that affected dairy cattle and rural workers in Para State, Brazil. Genetic analyses identified the virus as distinct from BeAn58058 vaccinia virus (identified in 1960s) and from smallpox vaccine virus strains. These findings suggest spread of autochthonous group 1 vaccinia virus in this region.

Published
2013

2. Neutralizing antibodies associated with exposure factors to Orthopoxvirus in laboratory workers

Author

Galileu Barbosa, Costa, Elizabeth Castro, Moreno, Giliane, de Souza Trindade, and Erna G, Kroon

Subjects
Adult, Male, Serological survey, viruses, Vaccinia virus, Orthopoxvirus, Antibodies, Viral, Serology, chemistry.chemical_compound, Young Adult, Immunology and Microbiology(all), Occupational Exposure, Medicine, Animals, Humans, Smallpox vaccine, National data, General Veterinary, General Immunology and Microbiology, biology, business.industry, Public Health, Environmental and Occupational Health, Outbreak, Middle Aged, Occupational infection, biology.organism_classification, Virology, veterinary(all), Antibodies, Neutralizing, Infectious Diseases, chemistry, Human exposure, biology.protein, Molecular Medicine, Cattle, Female, Vaccinia, Antibody, business, Laboratories, Brazil
Abstract

Extensive use of Vaccinia virus (VACV) in research has led to associated accidental human exposure in laboratories worldwide. In spite of the social and economic relevance of Bovine Vaccinia outbreaks in Brazil, national data concerning laboratory workers handling these infectious agents are relatively scarce. Therefore, a serological survey was conducted in a Brazilian laboratory to evaluate staff exposure to orthopoxviruses (OPVs). Information concerning direct work with OPVs, vaccination status and laboratory accidents was collected and correlated to serology results. This study presents an opportunity for discussion of routine procedures involving OPVs in laboratories and their intrinsic risks. Aspects of the live attenuated smallpox vaccine are also discussed.

Published
2013

3. Serologic and Molecular Evidence of Vaccinia Virus Circulation among Small Mammals from Different Biomes, Brazil

Author

Júlia B. Miranda, Iara A. Borges, Samantha P.S. Campos, Flávia N. Vieira, Tatiana M.F. de Ázara, Fernanda A. Marques, Galileu B. Costa, Ana Paula M.F. Luis, Jaqueline S. de Oliveira, Paulo César P. Ferreira, Cláudio Antônio Bonjardim, Silvio L.M. da Silva, Álvaro E. Eiras, Jônatas S. Abrahão, Erna G. Kroon, Betânia P. Drumond, Adriano P. Paglia, and Giliane de S. Trindade

Subjects
vaccinia virus, orthopoxvirus, bovine vaccinia, rodents, marsupials, hosts, Medicine, Infectious and parasitic diseases, RC109-216
Abstract

Vaccinia virus (VACV) is a zoonotic agent that causes a disease called bovine vaccinia, which is detected mainly in milking cattle and humans in close contact with these animals. Even though many aspects of VACV infection have been described, much is still unknown about its circulation in the environment and its natural hosts/reservoirs. To investigate the presence of Orthopoxvirus antibodies or VACV DNA, we captured small rodents and marsupials in 3 areas of Minas Gerais state, Brazil, and tested their samples in a laboratory. A total of 336 animals were tested; positivity ranged from 18.1% to 25.5% in the 3 studied regions located in different biomes, including the Atlantic Forest and the Cerrado. Analysis of nucleotide sequences indicated co-circulation of VACV groups I and II. Our findings reinforce the possible role played by rodents and marsupials in VACV maintenance and its transmission chain.

Published
2017
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4. Passatempo Virus, a Vaccinia Virus Strain, Brazil

Author

Juliana A. Leite, Betânia P. Drumond, Giliane S. Trindade, Zélia I.P. Lobato, Flávio G. da Fonseca, João R. dos Santos, Marieta C. Madureira, Maria I.M.C. Guedes, Jaqueline M.S. Ferreira, Cláudio A. Bonjardim, Paulo C.P. Ferreira, and Erna G. Kroon

Subjects
zoonotic poxvirus, poxvirus outbreak, Orthopoxvirus, Passatempo virus, Araçatuba virus, Cantagalo virus, Medicine, Infectious and parasitic diseases, RC109-216
Abstract

Passatempo virus was isolated during a zoonotic outbreak. Biologic features and molecular characterization of hemagglutinin, thymidine kinase, and vaccinia growth factor genes suggested a vaccinia virus infection, which strengthens the idea of the reemergence and circulation of vaccinia virus in Brazil. Molecular polymorphisms indicated that Passatempo virus is a different isolate.

Published
2005
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