Abstract
Fever, which is closely linked to viraemia, is considered to be both the main and the earliest clinical sign in sheep infected with bluetongue virus (BTV). The aim of this study was to evaluate the potential use of infrared thermography (IRT) for early detection of fever in sheep experimentally infected with bluetongue virus serotype 1 (BTV-1) and serotype 8 (BTV-8). This would reduce animal stress during experimental assays and assist in the development of a screening method for the identification of fever in animals suspected of being infected with BTV. Rectal and infrared eye temperatures were collected before and after BTV inoculation. The two temperature measures were positively correlated (r= 0.504, P< 0.05). The highest correlation between rectal and infrared temperatures was observed when temperatures were above physiological levels. IRT discriminated between febrile and non-febrile sheep with a sensitivity of 85% and specificity of 97%. The results showed that eye temperature measured using IRT was a useful non-invasive method for the assessment of fever in sheep infected with BTV under experimental conditions. Further research is required to evaluate the use of IRT under field conditions to identify potentially infected animals in bluetongue surveillance programmes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 182-186 |
| Number of pages | 5 |
| Journal | Veterinary Journal |
| Volume | 198 |
| Issue number | 1 |
| DOIs | |
| State | Published - Oct 2013 |
| Externally published | Yes |
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Keywords
- Bluetongue
- Fever detection
- Infrared thermography
- Sheep
ASJC Scopus subject areas
- Animal Science and Zoology
- veterinary(all)
Cite this
The use of infrared thermography as a non-invasive method for fever detection in sheep infected with bluetongue virus. / Pérez de Diego, Ana C.; Sánchez-Cordón, Pedro J.; Pedrera, Miriam; Martinez Lopez, Beatriz; Gómez-Villamandos, José C.; Sánchez-Vizcaíno, José M.
In: Veterinary Journal, Vol. 198, No. 1, 10.2013, p. 182-186.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The use of infrared thermography as a non-invasive method for fever detection in sheep infected with bluetongue virus
AU - Pérez de Diego, Ana C.
AU - Sánchez-Cordón, Pedro J.
AU - Pedrera, Miriam
AU - Martinez Lopez, Beatriz
AU - Gómez-Villamandos, José C.
AU - Sánchez-Vizcaíno, José M.
PY - 2013/10
Y1 - 2013/10
N2 - Fever, which is closely linked to viraemia, is considered to be both the main and the earliest clinical sign in sheep infected with bluetongue virus (BTV). The aim of this study was to evaluate the potential use of infrared thermography (IRT) for early detection of fever in sheep experimentally infected with bluetongue virus serotype 1 (BTV-1) and serotype 8 (BTV-8). This would reduce animal stress during experimental assays and assist in the development of a screening method for the identification of fever in animals suspected of being infected with BTV. Rectal and infrared eye temperatures were collected before and after BTV inoculation. The two temperature measures were positively correlated (r= 0.504, P< 0.05). The highest correlation between rectal and infrared temperatures was observed when temperatures were above physiological levels. IRT discriminated between febrile and non-febrile sheep with a sensitivity of 85% and specificity of 97%. The results showed that eye temperature measured using IRT was a useful non-invasive method for the assessment of fever in sheep infected with BTV under experimental conditions. Further research is required to evaluate the use of IRT under field conditions to identify potentially infected animals in bluetongue surveillance programmes.
AB - Fever, which is closely linked to viraemia, is considered to be both the main and the earliest clinical sign in sheep infected with bluetongue virus (BTV). The aim of this study was to evaluate the potential use of infrared thermography (IRT) for early detection of fever in sheep experimentally infected with bluetongue virus serotype 1 (BTV-1) and serotype 8 (BTV-8). This would reduce animal stress during experimental assays and assist in the development of a screening method for the identification of fever in animals suspected of being infected with BTV. Rectal and infrared eye temperatures were collected before and after BTV inoculation. The two temperature measures were positively correlated (r= 0.504, P< 0.05). The highest correlation between rectal and infrared temperatures was observed when temperatures were above physiological levels. IRT discriminated between febrile and non-febrile sheep with a sensitivity of 85% and specificity of 97%. The results showed that eye temperature measured using IRT was a useful non-invasive method for the assessment of fever in sheep infected with BTV under experimental conditions. Further research is required to evaluate the use of IRT under field conditions to identify potentially infected animals in bluetongue surveillance programmes.
KW - Bluetongue
KW - Fever detection
KW - Infrared thermography
KW - Sheep
UR - http://www.scopus.com/inward/record.url?scp=84887611146&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887611146&partnerID=8YFLogxK
U2 - 10.1016/j.tvjl.2013.07.013
DO - 10.1016/j.tvjl.2013.07.013
M3 - Article
C2 - 24053993
AN - SCOPUS:84887611146
VL - 198
SP - 182
EP - 186
JO - Veterinary Journal
JF - Veterinary Journal
SN - 1090-0233
IS - 1
ER -