Viral diseases: Introduction. A viral infection is any type of illness or disease caused by a virus, a type of microbe. Microbes are tiny organisms that cannot be seen without a microscope and include bacteria, fungi, and some parasites, as well as viruses.iral diseases: Introduction. A viral infection is any type of illness or disease caused by a virus, a type of microbe. Microbes are tiny organisms that cannot be seen without a microscope and include bacteria, fungi, and some parasites, as well as viruses.
OPTAR stands for Operating/Operational Target. Operating Targets. Operations, Planning, Training and Resource Support Services. Oceanside Photo & Telescope Astronomical Society (San Diego County, CA) Operational Tasking. Operational Tasking Data Link. Operational Tasking Nuclear. Occasional Papers in Translation and Textlinguistics.
Optaflexxâ¢ is a product available from Elanco Animal Health. This product contains ractopamine hydrochloride as the active ingredient, which is the same compound that is in Payleanâ¢ (labeled only for use in swine). Some feed supplements for show cattle are being marketed to contain this product.se of beta agonists as a growth promoting feed additive for finishing beef cattle Amy E. RadunzState Beef Extension SpecialistUniveristy of Wisconsin-Madison Growth promoters, such as implants and beta agonists, are a vailable for use in cattle.