eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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3/2011
vol. 36
 
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abstract:

Experimental immunology
Long-term study on the spread of caprine arthritis-encephalitis in a goat herd

Jarosław Kaba
,
Emilia Bagnicka
,
Michał Czopowicz
,
Mariusz Nowicki
,
Lucjan Witkowski
,
Olga Szaluś-Jordanow

(Centr Eur J Immunol 2011; 36 (3): 170-173)
Online publish date: 2011/10/18
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Dynamics of the infection with caprine arthritis-encephalitis virus (CAEV) has been studied in a goat herd for 17 years, between 1994 and 2010. During the first eight years within-herd seroprevalence raised from 6.8% to 75.0%. Lack of any control measures in the herd and unlimited contact between kids and their dams led to annual increase of seroprevalence rate by 7.7%. Implementation of the control program based on weaning kids immediately after birth and rearing them on cow colostrum and milk allowed to reduce seroprevalence to 26.4% within 5 years, with an annual decline in seroprevalence rate by 9.8%. However control program was unable to eradicate the disease and in the next 4 years the disease turned endemic with prevalence rate ranging from 26.4 to 32.7%. It seems that horizontal transmission and other technical handicaps are limiting factors which, in field conditions, do not allow to reduce the prevalence rate in CAEV-infected herds below 25-30%.
keywords:

caprine arthritis-encephalitis, seroconversion, seroprevalence, goat

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