Seroepidemiology of infectious bovine rhinotracheitis infection in unvaccinated cattle.

Age wise prevalence In the present study, the differences in IBR prevalence rate between below 1 year and 1-3 years groups was not significant, whereas between below 1 year and 3-6 years and above 6 years groups were highly significant (p<0.01) and the results were depicted in Table-2 .

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Age wise prevalence The age wise prevalence to IBR infection denoted that there was an increasing trend in the occurrence of IBR infection as age advances, and prevalence was low in the young animals [ 5 , 18 , 19 ].

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