Wyeth

American Home Products Corporation

Boehringer Ingelheim Vetmedica Gmbh

Chengjin Huang

Jennifer Hess

Mark Edward Ruppen

Lloyd G Chavez

Deborah Tardy Chaleff

Terri Wasmoen

Jerome Stephens

The present invention relates to a novel, isolated and purified hemorrhagic feline calicivirus FCV-DD1. The invention further embraces monovalent and multivalent vaccines containing the new FCV-DD1 strain. In addition, the invention encompasses methods of protecting felines against infection or preventing disease caused by feline calicivirus alone or in addition to other pathogens that comprises administering to the felines an immunologically effective amount of the monovalent and multivalent vaccines described herein. Also, the invention concerns methods for diagnosing or detecting the hemorrhagic feline calicivirus in a susceptible host, asymptomatic carrier and the like by detecting the presence of feline calicivirus FCV-DD1 or antibodies raised or produced against feline calicivirus FCV-DD1 antigen.

Hemorrhagic feline calicivirus, calicivirus vaccine and method for preventing development of calicivirus disease

The present invention relates to the complete biosynthetic pathway for the formation of the LL-F28249 compounds and, most importantly, the major component LL-F28249&#x3b1;. The purified and isolated nucleic acid molecule encoding the proteins of the biosynthetic pathway, which is isolated from a wild-type or mutant, is fully described in FIG.to FIG.-and SEQ ID NO:1. The DNA gene cluster and its expression in a suitable host enable the efficient production of the highly active natural metabolites and semisynthetic derivatives. The invention further concerns plasmids, vectors and host cells that contain and express the novel nucleic acid molecule. Of particular interest, the entire biosynthetic pathway fits compactly in three plasmids, Cos11, Cos36 and Cos40. The invention also concerns the purified and isolated biosynthesis proteins that are encoded by the whole DNA gene cluster. Additionally, the invention involves a new efficient, biochemical method of preparing moxidectin.

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The present invention provides a monoclonal antibody specific for an epitope which is unique to the surface protein component of an inactivated feline immunodeficiency virus (FIV) envelope glycoprotein. Said antibody is useful for the quantification of inactivated FIV or the determination of the potency of an inactivated FIV vaccine.

Monoclonal antibody specific for an epitope of inactivated feline immunodeficiency-encoded glycoprotein

Hemorrhagic feline calicivirus, calicivirus vaccine and method for preventing calicivirus infection or disease

The present invention pertains to the prevention or lessening of disease in cats caused by Feline Immunodeficiency Virus (FIV). Prevention or lessening of disease is understood to mean the amelioration of any symptoms, including immune system disruptions, that result from FIV infection. The invention provides for a plasmid which encodes the FIV genome where said genome has had a portion of the gag gene, specifically the p10 (nucleocapsid) coding region, or a portion thereof, deleted. This deletion prevents the production of functional or whole p10 protein, which in turn, prevents the packaging of RNA into virions produced from transfection of this plasmid into an appropriate host cell, resulting in virions which do not contain RNA. Such virions will be described as &ldquo;empty&rdquo; virions. The invention also encompasses host cells transformed with the plasmid which produce the empty virions, and the empty virions themselves. In another embodiment, the invention encompasses vaccines that comprise one or more empty virions described above, with a pharmaceutically acceptable carrier or diluent and a pharmaceutically acceptable adjuvant. In yet another aspect, the invention provides methods for preventing or lessening disease caused by FIV, which is carried out by administering to a feline in need of such treatment the vaccines described above.

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Fort Dodge, IA, United States of America

Chengjin Huang