FluSure/RespiSure RTU (Canada)

This page contains information on FluSure/RespiSure RTU for veterinary use.
The information provided typically includes the following:
  • FluSure/RespiSure RTU Indications
  • Warnings and cautions for FluSure/RespiSure RTU
  • Direction and dosage information for FluSure/RespiSure RTU

Flusure/respisure Rtu

This treatment applies to the following species:
Manufacturer: Pfizer

Swine Influenza Vaccine, H1n1 And H3n2
killed Virus

mycoplasma Hyopneumoniae Bacterin

For use in swine only

Product Description

FluSure/RespiSure RTU is for vaccination of healthy swine 3 weeks of age or older as an aid in preventing respiratory disease caused by swine influenza virus (SIV) subtypes H1N1 and H3N2 and Mycoplasma hyopneumoniae. FluSure/RespiSure RTU is a liquid preparation containing 2 type A field isolates, subtypes H1N1 and H3N2, of inactivated swine influenza viruses grown in an established cell line, plus a chemically inactivated whole cell culture of M. hyopneumoniae. FluSure/RespiSure RTU contains Amphigen®, a unique oil-in-water adjuvant, to enhance the immune response.

Disease Description

Swine influenza (SI) is an acute respiratory disease caused by Type A influenza viruses. In the USA, 2 subtypes of SIV (H1N1 and H3N2) have emerged as the major disease-causing agents. SIV and M. hyopneumoniae are both common components of porcine respiratory disease complex (PRDC). A typical outbreak of SI is characterized by sudden onset and rapid spread within herds. Clinical signs include depression, anorexia, coughing, fever (105-107°F/40.5-41.7°C) and serous discharge from the eyes and nose. The duration of the disease is usually 5-7 days. While clinical signs can be severe, recovery is generally rapid and death loss is usually less than 1%. However, SIV does predispose animals to secondary infections. The virus multiplies in the epithelial cells lining the bronchi and bronchioles causing necrosis of these cells.1 Gross lung lesions appear firm and purple and are indistinguishable in many cases from M. hyopneumoniae lesions. Laboratory testing is required for definitive diagnosis.

Mycoplasmal pneumonia of swine (MPS), or enzootic pneumonia, is a widespread, chronic disease characterized by coughing, growth retardation, and reduced feed efficiency. The etiologic agent is M. hyopneumoniae; however, the naturally occurring disease often results from a combination of bacterial and mycoplasmal infections.

MPS causes considerable economic loss in all areas where swine are raised. Surveys conducted at various locations throughout the world indicate that lesions typical of those seen with MPS occur in 30%-80% of slaughter-weight swine. Because mycoplasmal lesions may resolve before hogs reach slaughter weight, the actual incidence may be higher. The prevalence of M. hyopneumoniae infection in chronic swine pneumonia has been reported to range from 25%2-93%.3 Pigs of all ages are susceptible to MPS, but the disease is most common in growing and finishing swine. Current evidence indicates that M. hyopneumoniae is transmitted by aerosol or direct contact with respiratory tract secretions from infected swine. Transmission from sow to pig during lactation is possible.4 Once established, MPS occurs year after year in infected herds, varying in severity with such environmental factors as season, ventilation, and concentration of swine.

Clinical signs of MPS include a chronic, nonproductive cough continuing for weeks or months, unthrifty appearance, and retarded growth, even though the appetites of infected swine remain normal. Stunting may occur, resulting in considerable variation in size among affected pigs. Death loss associated with secondary bacterial infection and stress may occur. M. hyopneumoniae causes a loss of ciliary motility in the bronchial passages. Eventually the cilia are destroyed, resulting in reduction in natural defense in the upper respiratory tract and increased susceptibility to secondary infection with bacterial agents such as Pasteurella multocida, Haemophilus parasuis, Actinobacillus pleuropneumoniae, and Bordetella bronchiseptica. Swine lungworm and roundworm larvae infections may also increase the severity of MPS.

Safety And Efficacy

The safety of FluSure/RespiSure RTU was demonstrated in 3 field safety studies conducted in 3 different geographic locations. Nine hundred and six pigs were vaccinated at approximately 3 and 6 weeks of age. No injection site reactions or serious systemic reactions were observed following vaccination.

Efficacy of FluSure/RespiSure RTU was demonstrated in 2 host animal challenge studies. Pigs were vaccinated at 3-15 days of age and again 14 days later. Sixteen days following the second vaccination, the pigs were challenged with a heterologous isolate of either SIV H1N1 or H3N2. Pigs were necropsied 5 days postchallenge and lung damage evaluated. As compared to nonvaccinated controls, vaccinated pigs had significantly lower rectal temperatures, clinical signs, and lung lesion scores following challenge with either SIV H1N1 or H3N2. Study results are presented in Tables 1-4.

H1n1 Challenge Study

Table 1. h1n1 Serum Hemagglutination Inhibition Geometric Mean Titers

 

day 0*

Day 14

Day 28

Day 35

Controls

5.0**

5.0

5.0a

11.7a

Vaccinates

5.2

5.7

49.5b

49.4b

* Day 0 = Day of first vaccination

** Titers of < 10 were factored as 5.0 in calculation of geometric mean titers.

a,bGeometric mean titers within the same column with different lower-case superscripts are significantly different.

Table 2. Mean Percent Lung Damage And Frequency Of Clinical Signs

 

mean Percent Lung Damage*

Frequency Of Animals With At Least
1 Clinical Sign** Postchallenge

Controls

23.41a

9/18a

Vaccinates

5.04b

0/19b

* Back-transformed least-squares means

** Depression and/or rapid breathing and/or persistent coughing

a,bGeometric mean titers within the same column with different lower-case superscripts are significantly different.

H3n2 Challenge Study

Table 3. H3n2 Serum Hemagglutination Inhibition Geometric Mean Titers

 

day 0*

Day 14

Day 28

Day 35

Controls

5.0**

5.0a

5.9a

9.7a

Vaccinates

5.0

7.5b

267.2b

166.3b

* Day 0 = Day of first vaccination

** Titers of < 10 were factored as 5.0 in calculation of geometric mean titers.

a,bGeometric mean titers within the same column with different lower-case superscripts are significantly different.

Table 4. Mean Percent Lung Damage And Frequency Of Clinical Signs

 

mean Percent Lung Damage*

Frequency Of Animals With At Least
1 Clinical Sign** Postchallenge

Controls

33.43a

13/20a

Vaccinates

0.65b

0/19b

* Back-transformed least-squares means

** Depression and/or rapid breathing and/or persistent coughing

a,bGeometric mean titers within the same column with different lower-case superscripts are significantly different.

A study evaluating the duration of immunity of the H3N2 component of FluSure/RespiSure RTU is in progress.

Directions

1. General Directions: Vaccination of all pigs on the premises is recommended to enhance herd immunity. Shake well. Aseptically administer 2 mL intramuscularly.

2. Primary Vaccination: Healthy swine 3 weeks of age or older should receive two 2-mL doses administered approximately 3 weeks apart. In young pigs, vaccinate after maternally derived antibodies to SIV have declined.

3. Revaccination: Semiannual revaccination with a single dose is recommended.

4. Good animal husbandry and herd health management practices should be employed.

Precautions

1. Store at 2°-7°C. Prolonged exposure to higher temperatures may adversely affect potency. Do not freeze.

2. Use entire contents when first opened.

3. Sterilized syringes and needles should be used to administer this vaccine.

4. Do not vaccinate within 21 days before slaughter.

5. As with many vaccines, anaphylaxis may occur after use. Initial antidote of epinephrine is recommended and should be followed with appropriate supportive therapy.

6. This product has been shown to be efficacious in healthy animals. A protective immune response may not be elicited if animals are incubating an infectious disease, are malnourished or parasitized, are stressed due to shipment or environmental conditions, are otherwise immunocompromised, or the vaccine is not administered in accordance with label directions.

References

1. Easterday BC, Van Reeth K: Swine Influenza. In: Straw BE, D'Allaire S, Mengling WL, et al. (eds.) Disease of Swine, 8th Edition, pp. 277-290. ISU Press, Ames, Iowa USA.

2. Gois M, Kuksa F, Sisak F: Microbial findings in the lungs of slaughter pigs. Proc 6th Int Congr Pig Vet Soc, Copenhagen, 6:214, 1980.

3. Yamamoto K, Ogata M: Mycoplasmal and bacterial flora in the lungs of pigs. Proc 7th Int Congr Pig Vet Soc, Mexico City, 7:94, 1982.

4. Ross, RF: Mycoplasmal Diseases. In: Straw BE, D'Allaire S, Mengling WL, et al. (eds.) Diseases of Swine, 8th Edition, pp. 495-509. ISU Press, Ames, Iowa USA.

Technical inquiries should be directed to Pfizer Animal Health Technical Services, (800) 366-5288 (USA), (800) 461-0917 (Canada).

For veterinary use only

U.S. Veterinary License No. 189

Pfizer Animal Health, Exton, PA 19341, USA, Div. of Pfizer Inc, NY, NY 10017

75-0488-00

Presentation

50 dose (100 mL) vials.

Nac No.

11982570
PFIZER ANIMAL HEALTH
Pfizer Canada Inc.

17300 TRANS-CANADA HIGHWAY, KIRKLAND, QC, H9J 2M5
Order Desk:   800-663-8888
Toll-Free:   877-633-2001
Technical Services Canada:   800-461-0917
Technical Services USA:   800-366-5288
Website:   www.pfizer.ca
Every effort has been made to ensure the accuracy of the FluSure/RespiSure RTU information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the Canadian product label or package insert.

Copyright © 2014 North American Compendiums. Updated: 2014-05-28

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