Transmission Dynamics of Corynebacterium spp. Within Two Danish Dairy Cattle Herds

Transmission Dynamics of Corynebacterium spp. Within Two Danish Dairy Cattle Herds

Blog Article

Intramammary infections (IMI) can cause mastitis, a prevalent and costly infectious disease in dairy cattle worldwide.The IMI is caused by a range of bacteria, including Corynebacterium spp.Knowledge of the transmission dynamics of pathogens is generally sparse but essential to support decision-making; such as input to bioeconomic models.In this observational study, we explored the transmission dynamics of Corynebacterium spp.

in two different Danish dairy cattle HR Kit Polar herds by testing monthly quarter-level milk samples of all lactating cows for 1 year.We estimated the prevalence for herd 1 and 2 to 24 and 11.7%, respectively, and the mean quarter-level incidence to be 8 and 6.5% per month, respectively.

We compared a model for indirect transmission via the environment with a model with the direct contagious transmission and found that the latter model best explained the data.We estimated the daily mean quarter-level transmission rate to be 0.016 and 0.018 cases/quarter-day for herd 1 and 2, respectively.

The mean Tapes recovery rate was 0.012 and 0.016 for herd 1 and 2, respectively.Consequently, the basic reproduction number for herd 1 and 2 was 1.

27 and 1.10, respectively.This study highlights that Corynebacterium spp.can be prevalent within a herd and transmit directly between cows.

Thus, future studies should investigate cost-effective control measures against Corynebacterium spp.