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Passatempo virus, a vaccinia virus strain, Brazil.

Leite JA, Drumond BP, Trindade GS, Lobato ZI, da Fonseca FG, dos SJ, Madureira MC, Guedes MI, Ferreira JM, Bonjardim CA, Ferreira PC, Kroon EG - Emerging Infect. Dis. (2005)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

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.

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Related in: MedlinePlus

Lesions caused by Passatempo virus infection. Panels 1 and 2, ulcerative lesions on cows' teats; 3, mastitis caused by bacterial secondary infection; 4 and 5, lesion on calves' muzzle and oral mucosa; 6, lesions of dairy farm milker.
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Figure 1: Lesions caused by Passatempo virus infection. Panels 1 and 2, ulcerative lesions on cows' teats; 3, mastitis caused by bacterial secondary infection; 4 and 5, lesion on calves' muzzle and oral mucosa; 6, lesions of dairy farm milker.

Mentions: All dairy farms were similar, consisting of a main house with corrals and pasture fields generally with unsophisticated infrastructure. All milking was manually performed by milkers, typically without strict aseptic measures, which could have contributed to the spread of the virus among the herd and milkers. Cows exhibited lesions on teats and udders that resembled the clinical features observed during other Brazilian VACV outbreaks (1). Initial acute lesions were associated with a roseolar erythema with localized edema that led to the formation of vesicles. The vesicles rapidly progressed to papules and pustules, which subsequently ruptured and suppurated. Typically, a thick dark scab followed, but the formation of large areas of ulceration was also common. The course of infection lasted from 3 to 4 weeks. Different stages of lesions were present, ranging from papules to vesicles, pustules, and crusts (Figure 1). Moreover, because of secondary infections, some cows had mastitis (Figure 1). Calves became infected, showing lesions on oral mucosa and muzzles (Figure 1). Several infected milkers reported lesions on their hands, which were apparently transmitted by unprotected contact with sick cattle (Figure 1). In addition, infected persons reported severe headache, backache, lymphadenopathy, and high fever.


Passatempo virus, a vaccinia virus strain, Brazil.

Leite JA, Drumond BP, Trindade GS, Lobato ZI, da Fonseca FG, dos SJ, Madureira MC, Guedes MI, Ferreira JM, Bonjardim CA, Ferreira PC, Kroon EG - Emerging Infect. Dis. (2005)

Lesions caused by Passatempo virus infection. Panels 1 and 2, ulcerative lesions on cows' teats; 3, mastitis caused by bacterial secondary infection; 4 and 5, lesion on calves' muzzle and oral mucosa; 6, lesions of dairy farm milker.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3367646&req=5

Figure 1: Lesions caused by Passatempo virus infection. Panels 1 and 2, ulcerative lesions on cows' teats; 3, mastitis caused by bacterial secondary infection; 4 and 5, lesion on calves' muzzle and oral mucosa; 6, lesions of dairy farm milker.
Mentions: All dairy farms were similar, consisting of a main house with corrals and pasture fields generally with unsophisticated infrastructure. All milking was manually performed by milkers, typically without strict aseptic measures, which could have contributed to the spread of the virus among the herd and milkers. Cows exhibited lesions on teats and udders that resembled the clinical features observed during other Brazilian VACV outbreaks (1). Initial acute lesions were associated with a roseolar erythema with localized edema that led to the formation of vesicles. The vesicles rapidly progressed to papules and pustules, which subsequently ruptured and suppurated. Typically, a thick dark scab followed, but the formation of large areas of ulceration was also common. The course of infection lasted from 3 to 4 weeks. Different stages of lesions were present, ranging from papules to vesicles, pustules, and crusts (Figure 1). Moreover, because of secondary infections, some cows had mastitis (Figure 1). Calves became infected, showing lesions on oral mucosa and muzzles (Figure 1). Several infected milkers reported lesions on their hands, which were apparently transmitted by unprotected contact with sick cattle (Figure 1). In addition, infected persons reported severe headache, backache, lymphadenopathy, and high fever.

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

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.

Show MeSH
Related in: MedlinePlus