title: Molecular survey of Cytomegalovirus shedding profile in commercial pig herds in Brazil.
abstract: BACKGROUND
  Porcine cytomegalovirus (PCMV) causes rhinitis in both young and older pigs. The present study describes the detection and characterization of shedding profiles of PCMV in nine farrow-to-finish Brazilian swine herds.
  
  
  METHODS
  Tonsil swabs from sows, nursery and grow-finish pigs of nine farrow-to-finish commercial herds (n = 756) were evaluated for the presence of PCMV by PCR.
  
  
  RESULTS
  The virus was detected in all herds. Positive samples were concentrated in piglets of ages varying from 40 to 60 days (nursery phase), while none of the sows were positive for PCMV detection.
  
  
  CONCLUSIONS
  These findings corroborate the literature regarding PCMV worldwide distribution, and introduce the first report of PCMV shedding profile in Brazilian pig farms.
authors.affiliation: Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil. maudutra@terra.com.br.
authors.forename: Maurício Cabral
authors.initials: MC
authors.lastname: Dutra
authors.forename: Luisa Zanolli
authors.initials: LZ
authors.lastname: Moreno
authors.forename: Cristina Roman
authors.initials: CR
authors.lastname: Amigo
authors.forename: Maria Roberta
authors.initials: MR
authors.lastname: Felizardo
authors.forename: Thais Sebastiana Porfida
authors.initials: TS
authors.lastname: Ferreira
authors.forename: Tania Alen
authors.initials: TA
authors.lastname: Coutinho
authors.forename: Alexandre Abelardo
authors.initials: AA
authors.lastname: Sanches
authors.forename: Jason Ardila
authors.initials: JA
authors.lastname: Galvis
authors.forename: Marina
authors.initials: M
authors.lastname: Moreno
authors.forename: Andrea Micke
authors.initials: AM
authors.lastname: Moreno
mesh_terms: D000818:Animals; D001938:Brazil / Q000453:epidemiology; D003587:Cytomegalovirus / Q000302:isolation & purification*; D003586:Cytomegalovirus Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology; D014066:Palatine Tonsil / Q000821:virology; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000821:virology*; D017201:Virus Shedding