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Page 10 of articles about vaccine

Figure 1. Schematic view of different approaches in PRRSV positive herds.

3

PRRSV control using vaccination and optimized management: three case studies

Although the use of vaccination was effective in stabilizing the sows, the results of these case studies emphasized that elimination of PRRSV from the nursery can only be accomplished if vaccination and partial depopulation/ disinfection are supported by strict implementation of all recommended management procedures, including AI/AO.

1

Update on novel experimental pig vaccine approaches

Dr. Tanja Opriessnig, The Roslin Institute, University of Edinburgh and Iowa State University, from the 2016 North American PRRS Symposium, December 3‐4, 2016, Chicago, Illinois, USA.

Acute pleuropneumonia in swine: three observations (indicated by arrows) can frequently be made: consolidated areas that are from dark red to black, interlobular edema and fibrinous pleuritis. Picture courtesy of Dr Robert Desrosiers

12 2

Prevention of the disease caused by Actinobacillus pleuropneumoniae (App)

This article explains the main preventive measures against App, focusing on the use of antimicrobials and vaccines.

1

Impact of maternally derived immunity on piglets’ immune response and protection against PCV2 after vaccination at different age

This study was aimed at evaluating the clinical protection, the level of Porcine circovirus type 2 (PCV2) viremia and the immune response (antibodies and IFN-γ secreting cells (SC)) in piglets derived from PCV2 vaccinated sows and themselves vaccinated against PCV2 at different age, namely at 4, 6 and 8 weeks.

Humoral immune responses and viral shedding following vaccination with modified live PRRSv vaccines

The antibody response and pattern of shedding of vaccine virus following vaccination with modified live genotype I or II porcine reproductive and respiratory syndrome virus (PRRSV) vaccines (MLVs) were investigated.

Figure 2. Swollen eyes in an affected pig.

4 2

Clinical case: Bowel Oedema

This case study describes an outbreak in a commercial unit which proved difficult to stop without vaccine. Since 2014 an increasing number of cases of this disease have been reported in Europe though it remains unclear why it has reappeared.

Commission approves acquisition of Sanofi's animal health business Merial by Boehringer Ingelheim, subject to conditions

The decision is conditional on the divestment of a number of animal health vaccines and pharmaceuticals.

Necropsy lesions consistent with enzootic pneumonia, influenza, PRRS and other bacterial infections

2

Immunisation of fattening pigs against influenza: a case study

The reasons behind the vaccination against influenza virus on a group of fattenig units with recurrent respiratory clinical pictures that belong to an integrated production system are discussed. Impact on production parameters and economic results are also shown.

Scours caused by E. Coli. (Courtesy of Dr. Hector Patullo)

1

Vaccination strategies for the prevention of oedema disease and diarrhoea caused by E.coli. Neonatal and post-weaning diarrhoea (2/2)

Achieving good levels of colostral immunity by vaccinating sows is the first step to prevent scours; subsequently, active pre or post-weaning immunization must be added to prevent post-weaning diarrhoea.

PCV2 viremia levels in 2006 and 2012

1

The impact of 6 years of PCV2 vaccination on viral presence and immunity in pigs across the United States

PCV2 vaccination is nearly universal. Has viral presence decreased after 6 years of vaccination? Could vaccination policies be changed?

Sales of veterinary antimicrobial agents in 25 EU/EEA countries in 2011

3

Ileitis vaccination – A tool to reduce the need for antibiotic treatment

In the coming years, the use of antimicrobials will be more closely regulated, following the guidelines set by the WHO in its global report on antimicrobial resistance in 2014.

Influence of four commercial PCV2 vaccines on the improvement of production parameters in pigs with maternally derived antibodies

In the presence of high MDA levels, piglets immunized with four commercial PCV2 vaccines showed a significantly reduction of PCV2 infected pigs, viral load...

Field evaluation of the intranasal route as an alternative for administering Streptococcus suis and Haemophilus parasuis bacterins

Pigs in this study appeared to respond very similarly between the IN and IM routes at the time of processing when boosted at weaning by the IM route.

Influence of PCV2 vaccination on the level of antimicrobial consumption

The estimated impact of PCV-2 vaccination revealed a highly significant decline in total antimicrobial drug use on finishing farms.

1

U of S VIDO-InterVac develops vaccine for PEDV

In less than a year, University of Saskatchewan (U of S) scientists have developed and tested a prototype vaccine that could protect the North American swine industry from a virus that has killed more than eight million pigs and cost more than $400 million in lost income since 2013.

Effects of antimicrobials on pig humoral immune responses induced by erysipelas vaccination

The results of the present study indicate that vaccination of pigs against erysipelas in the presence of antibiotics may result in a decrease or enhancement in the production of specific antibodies.