TreatmentSince no antiviral drugs are easily available to the public, the treatment of IBR depends on the symptoms presented by the animal. For this reason, there is currently no direct treatment available for IBR. Therefore, upon occurrence of IBR infection, animals should be recognized and quarantined. Also depending on the severity of the disease, infected animals may be given a broad-spectrum antibiotic to reduce the risk of developing a secondary bacterial infection. Also during this outbreak, naive animals should not be introduced into an IBR-infected herd and all animals with unknown vaccination history should be properly vaccinated immediately after being introduced into the herd and quarantined. A control program must then be developed and followed to help reduce the risks of introducing the virus into the herd and to help reduce the risks of the virus circulating in the herd. The following section describes the plans to be developed and how they should be controlled and monitored. Prevention/ControlPrevention/control of IBR is based on the principle of preventing the virus from entering the herd or through the use of vaccines, such as modified vaccines. live vaccines (“marker” vaccines). Prevention also aims to prevent the virus from recirculating within the herd. The herd control program also has four key stages. These steps are: 1) Plan, 2) Investigate, 3) Control and 4) Monitor. 1) Plan → This involves consideration of possible control plans that can be applied to the herd, methods to investigate how the virus has been introduced into the herd and to stop the circulation of the virus in the herd and possible surveillance methods that can be pu......middle of paper......a dairy or beef herd. There are obvious direct costs such as stunted growth of the animal, veterinary bills, medication bills, vaccination bills and of course, the death of the animal itself. Added to these costs are also hidden costs such as reduced feed conversion efficiency of the animal, reduced daily weight gain, loss of specialist markets e.g. AI and food exports. animals, and of course a waste of time for farmers. deal with epidemics and sick animals. In dairy herds, a sudden decrease in milk yields can also occur, decreasing farmers' ability to meet their quota. It can also cause abortions within herds, which would also contribute to costs for the farmer. In addition to these costs, drug residues, antibiotic resistance and animal welfare issues contribute to the negative impact of IBR virus in Irish herds..