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Cattle reproductive disease vaccines

a technology for bvdv vaccines and cattle, which is applied in the field of conjugated vaccines, can solve the problems of inactivated bvdv vaccines, inability to protect the fetus from infection, and inability to achieve fetal protection with inactivated bvdv vaccines

Inactive Publication Date: 2007-12-27
PFIZER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] The present method provides protection to animals such as bovine, in particular, dairy cattle, against respiratory infection and reproductive disease. The present method provides protection to animals such as pregnant cows against abortion caused by IBR and persistent fetal infections caused by BVDV, Types 1 and 2. The present method also provides protection to animals such as lactating cows and calves nursing pregnant cows against persistent infections caused by BVDV, Types 1 and 2. Thus, the present method provides protection to breeding age animals, pregnant animals and lactating animals.

Problems solved by technology

Abortion or mummification can result when pregnant cattle become infected especially during the first trimester.
Fetal protection has not been achieved with inactivated BVDV vaccines due to a short duration of immunity and an inefficient cross-type protection (Bolin, Vet. Clin. North Am.
Moreover, the available BVDV vaccines are not indicated for use in pregnant cattle or calves nursing pregnant cows.
so known. Leptospiral infection of cattle may result in acute fever, agalactia, abortion, or birth of premature and weak infected calves, and may contribute to breeding failures and low concept
r pregnant. In such cattle they establish acute or chronic infection of the kidneys, resulting in urinary shedding of virulent organisms which in turn may infect other animals or their hum
an handlers. Immunity to Leptospira is serovar specific, and although vaccines have been available for many years, most induce only a poor and short-li

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

Materials and Methods

[0065] Animals—Fifty-six BVDV seronegative (i.e., having serum neutralization [SN] titers <1:2) cows suitable for breeding were obtained from multiple sources and maintained in research isolation facilities for the duration of the study. Each animal was identified with duplicate ear tags, one placed in each ear. New tags were installed in cases where an animal lost an ear tag. Prior to the study, test animals were inoculated with commercial vaccines for leptospirosis, campylobacteriosis (vibriosis), and clostridial infections. Test animals were maintained under supervision of an attending veterinarian, who clinically monitored them on a daily basis.

[0066] Test Vaccine—

[0067] The test vaccine was a multivalent, modified live infectious bovine rhinotracheitis (IBR)-parainfluenza 3 (PI3)-respiratory syncytial virus (RSV) vaccine in desiccated form, rehydrated with an inactivated, liquid BVDV vaccine combined with an adjuvant. (Pfizer Inc, New York, N.Y.) The BVDV...

example 2

Materials and Methods

[0099] Animals—Fifty-nine BVDV seronegative (i.e., having serum neutralization [SN] titers <1:2) cows and heifers of breeding age and soundness were obtained from multiple sources and maintained in isolation at research facilities in Nebraska for the duration of the study. Each animal was identified with duplicate ear tags, one placed in each ear. New tags were installed in cases where an animal lost an ear tag. Prior to the study, test animals were inoculated with commercial vaccines for leptospirosis, campylobacteriosis (vibriosis), and clostridial infections. Test animals were maintained under supervision of an attending veterinarian, who clinically monitored them on a daily basis.

[0100] Test Vaccine—The test vaccine was a multivalent, modified live infectious bovine rhinotracheitis (IBR)-parainfluenza 3 (PI3)-respiratory syncytial virus (RSV) vaccine in desiccated form, rehydrated with an inactivated, liquid BVDV vaccine (CattleMaster / PregSure 5, Pfizer In...

example 3

[0125] Two groups of 16 cattle were vaccinated twice subcutaneously at an interval of 3 weeks with 2 mL of L. hardjo / L. pomona combination vaccines prepared from two adjuvant formulations: 1) 2.5% Amphigen with Quil A / cholesterol each at 250 mcg / mL, and 2) Amphigen / AI-gel. The vaccines consisted of killed leptospires from which the culture fluids had been removed, so free endotoxin was low. Body temperatures, injection-site reactions, and general health observations were recorded following both injections. No systemic affects were seen, and local reactions were minimal and judged to be clinically acceptable. Sixteen additional cattle were injected with saline as controls. Four weeks after vaccination, cattle were challenged by ocular and vaginal instillation of 5×106 leptospires on 3 consecutive days. Half of each treatment group was challenged with serovar hardjo and half with pomona. Two pomona controls were eliminated from the study for unrelated reasons, leaving 6 animals in tha...

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Abstract

The present invention relates to combination vaccines and methods for treating or preventing diseases or disorders in an animal caused by infection by Bovine Viral Diarrhea Virus (BVDV) Types 1 and 2, Bovine Herpes Virus Type-1 (BHV-1), Bovine Respiratory Syncytial Virus (BRSV), Parainfluenza Virus (PI3), Campylobacter fetus, Leptospira canicola, Leptospira grippotyphosa, Leptospira hardj-prajitno, Leptospira icterohaemmorrhagiae, Leptospira hardjo-bovis and Leptospira pomona by administering to the animal an effective amount of a combination vaccine. The combination vaccine can be a whole or partial cell inactivated or modified live preparation.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation of copending application Ser. No. 10 / 647,919 filed on Aug. 26, 2003 which claims benefit of U.S. Provisional Application No. 60 / 405,969 filed Aug. 26, 2002.FIELD OF THE INVENTION [0002] The present invention relates to combination vaccines and methods for treating or preventing diseases or disorders in an animal caused by infection by Bovine Viral Diarrhea Virus (BVDV) Types 1 and 2, Bovine Herpes virus Type-1 (BHV-1), Bovine Respiratory Syncytial Virus (BRSV), Parainfluenza Virus (PI3), Campylobacter fetus, Leptospira canicola, Leptospira grippotyphosa, Leptospira borgpetersenii hardjo-prajitno, Leptospira icterohaemmorrhagiae, Leptospira borgpetersenii hardjo-bovis and Leptospira interrogans pomona by administering to the animal an effective amount of a combination vaccine. The combination vaccine can be a whole or partial cell inactivated or modified live preparation. BACKGROUND OF THE INVENT...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K39/12A61P31/20A61K39/00A61K39/02A61K39/155A61K39/265A61K39/295C07K14/115C07K14/135C07K14/18
CPCA61K39/00A61K39/0225A61K39/295A61K39/39A61K2039/5252A61K2039/5254C12N2770/28022C12N2710/16722C12N2720/10022C12N2760/18522C12N2760/18622C12N2770/24322C07K14/005A61P11/00A61P15/00A61P15/06A61P31/00A61P31/04A61P31/12A61P31/14A61P31/20A61P31/22A61P37/02A61P37/04A61P39/00A61K39/265A61K39/155A61K39/12
Inventor DOMINOWSKI, PAUL JOSEPH
Owner PFIZER INC
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