Repeated Occurence of Akabane and CNS Defects in Calves
DOI:
https://doi.org/10.21423/aabppro19926456Keywords:
Akabane virus, abortion, arthrogryposis, hydranencephaly, central nervous system, vaccinationAbstract
Akabane virus was first confirmed in 1975 (2) as a causative agent of the big outbreak of abortion, arthrogryposis and hydranencephaly in 1972-73 in Japan. Akabane vaccine was developed soon after the- virus discovery. However, Akabane disease has occurred several times thereafter at the interval of two to five years. No vaccination and early change of cattle generation will be the main reason.
In this report, the recent outbreak of calves with central nervous system (CNS) defects was investigated in comparison with the past Akabane and Chuzan (7) disease.