Procedures for preventing the transmission of foot‐and‐mouth disease virus to pigs and sheep by personnel in contact with infected pigs

Amass, Sandra F.; Pacheco, Juan M.; Mason, Peter W.; Schneider, Jessica L.; Álvarez, Rosa; Clark, Leigh; Ragland, Darryl

doi:10.1136/vr.153.5.137

Cited by 20 publications

(19 citation statements)

References 10 publications

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“…A previous study confirmed that biosecurity procedures such as handwashing, showering and donning new outerwear and gloves are effective in preventing the transmission of footand-mouth disease virus to pigs and sheep by personnel in contact with infected pigs [4].…”

Section: Discussionmentioning

confidence: 74%

Reproduction of Adenoviral Gizzard Erosion by the Horizontal Transmission of Fowl Adenovirus Serotype 1

Ono

Okuda

Shibata

et al. 2007

The Journal of Veterinary Medical Science

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ABSTRACT. The horizontal transmission ability of fowl adenovirus (FAV) serotype 1 99ZH strain, isolated from chickens exhibiting gizzard erosion, was investigated. Twelve 13-day-old specific pathogen-free chickens were inoculated orally with 10 6 TCID 50 /0.05 ml of the strain. An in-pen contact group (chickens in the same pen with inoculated chickens), hedge contact group (chickens in a pen connected with pens housing inoculated chickens), non-contact group (chickens in a separate pen placed at a distance of 70 cm from the connected pens), human exposure group (chickens in the next room and attended last every day) and negative control group were examined. Each group consisted of 11 or 12 uninoculated chickens. Gizzard lesions were grossly or histologically observed from 10 days after exposure (DAE) in the in-pen contact group, and from 15 DAE in the hedge contact and non-contact groups. The FAV gene was detected by polymerase chain reaction performed on cloacal swabs taken on 5 and 13 DAE from chickens in both contact groups, and on 20 and 26 DAE from those in the non-contact group. Serum neutralizing antibodies against FAV serotype 1 were detected in chickens from 13 and 26 DAE in both contact groups and in the non-contact group, respectively. In the human exposure and negative control groups, no infection was observed. We conclude that FAV-99ZH strain spreads rapidly through direct contact with inoculated chickens, and slowly through non-contact transmission, and that adenoviral gizzard erosion is reproduced by this horizontal transmission.

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Section: Discussionmentioning

confidence: 74%

Reproduction of Adenoviral Gizzard Erosion by the Horizontal Transmission of Fowl Adenovirus Serotype 1

Ono

Okuda

Shibata

et al. 2007

The Journal of Veterinary Medical Science

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“…decrease the risk of disease transmission. Also biosecurity actions, including hygienic measures such as washing hands and using boots and coveralls (Amass et al, 2003(Amass et al, , 2004, as well as transport logistics and "allin-all-out" systems, to mention a few, decrease the risk of spreading diseases (Madec, 2001).…”

Section: Biosecuritymentioning

confidence: 99%

Biosecurity on Finnish cattle, pig and sheep farms – results from a questionnaire

Sahlström

Virtanen

Kyyrö

et al. 2014

Preventive Veterinary Medicine

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“…Infection status was established by clinical assessment and laboratory confirmation of infection. Viremia was determined by virus isolation as previously described with minor changes (Amass et al, 2003). Briefly, whole blood was collected daily and centrifuged at 800g for 10 min.…”

Section: Confirmation Of Infection Statusmentioning

confidence: 99%

Detection of foot-and-mouth disease virus infected cattle using infrared thermography

Rainwater-Lovett

Pacheco

Packer

et al. 2009

The Veterinary Journal

112

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In this study, infrared thermography (IRT) was assessed as a means of detecting foot-and-mouth disease virus (FMDV)-infected cattle before and after the development of clinical signs. Preliminary IRT imaging demonstrated that foot temperatures increased in FMDV-infected animals. The maximum foot temperatures of healthy (n=53), directly inoculated (DI) (n=12), contact (CT) (n=6), and vaccine trial (VT) (n=21) cattle were measured over the course of FMD infection. A cut-off value was established at 34.4 degrees C (sensitivity=61.1%, specificity=87.7%) with the aim of detecting FMDV-infected animals both before and after clinical signs were observed. Seven of 12 (58%) DI and 3/6 (50%) CT animals showed maximum foot temperatures exceeding the 34.4 degrees C cut-off before the development of foot vesicles. In contrast, only 5/21 (24%) VT animals displayed pre-clinical foot temperatures above this cut-off possibly indicating partial vaccine protection of this group. These results show IRT as a promising screening technology to quickly identify potentially infected animals for confirmatory diagnostic testing during FMD outbreaks. Further evaluation of this technology is needed to determine the value of IRT in detecting animals with mild clinical signs or sub-clinical infections.

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Procedures for preventing the transmission of foot‐and‐mouth disease virus to pigs and sheep by personnel in contact with infected pigs

Cited by 20 publications

References 10 publications

Reproduction of Adenoviral Gizzard Erosion by the Horizontal Transmission of Fowl Adenovirus Serotype 1

Reproduction of Adenoviral Gizzard Erosion by the Horizontal Transmission of Fowl Adenovirus Serotype 1

Biosecurity on Finnish cattle, pig and sheep farms – results from a questionnaire

Detection of foot-and-mouth disease virus infected cattle using infrared thermography

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