Abstract: The present invention relates to modified Mannheimia haemolytica (M. haemolytica) lktCA gene cluster cassettes, compositions comprising such cassettes, methods of using such cassettes and compositions, and kits comprising such cassettes and compositions. Also described herein are Mycoplasma bovis (M. bovis) protective antigens, compositions comprising such antigens, methods of using such antigens and compositions, and kits comprising such antigens and compositions. Also described herein are modified M. haemolytica lktCA gene cluster cassettes engineered to express M. bovis protective antigens, compositions comprising such cassettes, methods of using such cassettes and compositions, and kits comprising such cassettes and compositions.

Abstract: The present invention provides novel attenuated Pasteurella multocida strains that may be used, in live or killed form, to formulate vaccines that are highly protective against P. multocida infection in bovines, other mammals, and in birds. The present invention also identifies the combination of nanP and hyaC gene mutations as key to the provision of such vaccines. When appropriately formulated, antigenic material of numerous other bovine pathogens may be combined with the live attenuated Pasteurella multocida strains, to make effective combination vaccines.

Abstract: This invention relates to novel fusion peptides and immunogenic compositions containing the fusion peptides useful in the control and prevention of tick infestations. The invention also relates to compositions comprising said fusion peptides, methods of vaccination against tick infestation using said fusion peptides and compositions, and kits for use with such compositions and methods.

Abstract: This invention relates to novel fusion peptides and immunogenic compositions containing the fusion peptides useful in the control and prevention of tick infestations. The invention also relates to compositions comprising said fusion peptides, methods of vaccination against tick infestation using said fusion peptides and compositions, and kits for use with such compositions and methods.

Abstract: The present invention relates to modified Mannheimia haemolytica (M. haemolytica) lktCA gene cluster cassettes, compositions comprising such cassettes, methods of using such cassettes and compositions, and kits comprising such cassettes and compositions. Also described herein are Mycoplasma bovis (M. bovis) protective antigens, compositions comprising such antigens, methods of using such antigens and compositions, and kits comprising such antigens and compositions. Also described herein are modified M. haemolytica lktCA gene cluster cassettes engineered to express M. bovis protective antigens, compositions comprising such cassettes, methods of using such cassettes and compositions, and kits comprising such cassettes and compositions.

Abstract: The present invention provides attenuated M. haemolitica strains that elicit an immune response in animal against M. haemolitica, compositions comprising said strains, methods of vaccination against M. haemolitica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: This disclosure provides attenuated P. multocida strains which can be used to prepare vaccine compositions useful for protection against P. multocida.

Abstract: The present invention provides attenuated M haemolitica strains that elicit an immune response in animal against M haemolitica, compositions comprising said strains, methods of vaccination against M haemolitica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: This disclosure provides attenuated P. multocida strains which can be used to prepare vaccine compositions useful for protection against P. multocida.

Abstract: The present invention provides attenuated M haemolitica strains that elicit an immune response in animal against M haemolitica, compositions comprising said strains, methods of vaccination against M haemolitica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: The present invention provides attenuated M. haemolitica strains that elicit an immune response in animal against M. haemolitica, compositions comprising said strains, methods of vaccination against M. haemolitica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: The present invention provides attenuated M. haemolytica strains that elicit an immune response in animals against M. haemolytica, compositions comprising said strains, methods of vaccination against M. haemolytica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: This disclosure provides attenuated M. haemolytica strains useful for providing immunity against M. haemolytica.

Abstract: The present invention provides attenuated M. haemolitica strains that elicit an immune response in animal against M. haemolitica, compositions comprising said strains, methods of vaccination against M. haemolitica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: The present invention provides attenuated M. haemolytica strains that elicit an immune response in animals against M. haemolytica, compositions comprising said strains, methods of vaccination against M. haemolytica, and kits for use with such methods and compositions. The invention further provides multi-valent vaccines, which provide protective immunity when administered in an effective amount to animals susceptible to “shipping fever” or bovine respiratory disease.

Abstract: Acapsular hyaE deletion mutants of P. multocida can be administered to mammals, particularly ungulates, or birds to provide protective immunity against wild-type P. multocida, e.g., to prevent or reduce the severity of hemorrhagic septicemia or pneumonia in mammals, particularly livestock, ungulates, and companion animals, or fowl cholera in birds, particularly poultry.

Abstract: Mutants of P. haemolytica provide excellent safety and efficacy when used as vaccines in ruminants, for example cattle, sheep, and goats, subject to pneumonic pasteurellosis. They can be administered by a variety of routes. Especially preferred is the use in animal feeds. The mutants are not reverting and contain no foreign DNA and no introduced antibiotic resistance genes.

Abstract: Methylation of DNA can be a critical step in the introduction of DNA into P. haemolytica. A methyltransferase has been isolated and molecularly cloned for this purpose. Use of the methyltransferase has allowed construction of defined, attenuated mutants for use as vaccines to protect cattle.

Abstract: Mutants of P. haemolytica provide excellent safety and efficacy when used as vaccines in ruminants, for example cattle, sheep, and goats, subject to pneumonic pasteurellosis. They can be administered by a variety of routes. Especially preferred is the use in animal feeds. The mutants are not reverting and contain no foreign DNA and no introduced antibiotic resistance genes.

Abstract: Tools for genetically engineering Pasteurellaceae are provided. Replication-conditional plasmids which are useful for the Pasteurellaceae have been isolated and characterized. The plasmids can be utilized for delivery of DNA segments into the Pasteurellaceae in situations where control of extra-chromosomal replication desired, such as in achieving allelic exchange or site-directed mutagenesis. A restriction endonuclease, HsoI, was isolated from a bovine lung isolate of Haemophilus somnus. The enzyme was found to be a true isoschizomer of HinPI, a commercially available enzyme originally isolated from Haemophilus influenzae PI. Commercially available HhaI methyl transferase was found to protect against cleavage by both enzymes. Methylation of foreign plasmid DNA was found to enhance transformation of Haemophilus somnus in excess of four orders of magnitude.