Colostral Transmission of Bluetongue Virus Nucleic Acid Among Newborn Dairy Calves in California

Colostral antibody induced interference of inactivated bluetongue serotype-8 vaccines in calves

Since its introduction into northern Europe in 2006, bluetongue has become a major threat to animal health. While the efficacy of commercial vaccines has been clearly demonstrated in livestock, little is known regarding the effect of maternal immunity on vaccinal efficacy. Here, we have investigated the duration and amplitude of colostral antibody-induced immunity in calves born to dams vaccina...

Calves Previously Immunized with Bluetongue Virus

* Corresponding author 20 Email addresses: 21 Ludovic Martinelle : [email protected] 22 Fabiana Dal Pozzo : [email protected] 23 Pierre Sarradin: [email protected] 24 Willem Van Campe : willem.vancampe@coda-cerva 25 Ilse De Leeuw: [email protected] 26 Kris De Clercq : [email protected] 27 Christine Thys : [email protected] 28 Etienne Thiry : etienne.thiry@...

A Deterministic Model to Quantify Risk and Guide Mitigation Strategies to Reduce Bluetongue Virus Transmission in California Dairy Cattle

The global distribution of bluetongue virus (BTV) has been changing recently, perhaps as a result of climate change. To evaluate the risk of BTV infection and transmission in a BTV-endemic region of California, sentinel dairy cows were evaluated for BTV infection, and populations of Culicoides vectors were collected at different sites using carbon dioxide. A deterministic model was developed to...

Experimental bluetongue virus superinfection in calves previously immunized with bluetongue virus serotype 8

The effect of a superinfection with bluetongue virus serotype 1 (BTV1) was evaluated on two groups of four calves. One group received a commercial inactivated BTV serotype 8 (BTV8) vaccine. This group and the non-vaccinated group of calves were challenged twice (4 months apart) with the European BTV8 strain isolated during the 2006-2007 epidemics. Calves were then infected with a BTV1 inoculum ...

The nucleic acid of African Horse-Sickness Virus