Source: UNIV OF MARYLAND submitted to
PREVENTION AND CONTROL OF AVIAN INFLUENZA IN THE U.S. COORDINATED AGRICULTURAL PROJECT
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
TERMINATED
Funding Source
Reporting Frequency
Annual
Accession No.
0224467
Grant No.
2011-85204-30046
Project No.
MD-VTMD-1206
Proposal No.
2010-04744
Multistate No.
(N/A)
Program Code
A5111
Project Start Date
Feb 1, 2011
Project End Date
Jan 31, 2013
Grant Year
2011
Project Director
Perez, D. R.
Recipient Organization
UNIV OF MARYLAND
(N/A)
COLLEGE PARK,MD 20742
Performing Department
Veterinary Medicine
Non Technical Summary
Poultry production in the US has increased from 3 billion to 7 billion broilers since the 1960s. It is the most important source of meat protein in the human diet in many countries around the world. US poultry production amounts to approximately 18% of total world production. Effective detection, control and prevention of avian influenza are of the utmost importance to maintain the US leadership in world poultry product markets. Such efforts will contribute significantly towards national food security. These goals cannot be accomplished without solid scientific knowledge of the molecular and epizootiological bases for the interspecies transmission of influenza A viruses including the factors contributing to high virulence in poultry and swine. To be useful this knowledge needs to be developed in the context of the actual production scenarios. We will continue developing reagents, technologies, and human resources aimed at the detection and eradication of influenza from economically important poultry species. Our efforts will also have a major impact on the prevention and control of zoonotic outbreaks of avian influenza. Investigators from several institutions across the country will continue to maintain a network research and education structure focused on the projects highlighted below.
Animal Health Component
100%
Research Effort Categories
Basic
50%
Applied
50%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
3113299110150%
3153599302050%
Goals / Objectives
Overarching goal: To prevent and control avian influenza in the U.S. Objectives: Title: Development of a Sustainable Emergency Poultry Disease Response - Short Course. Title: Biosecurity, Emergency Planning, Animal Welfare Training and Certification for Poultry Haulers, Handlers and Catch Crews. Title: Development of an eXtension Community of Practice on the Prevention and Control of Avian Influenza. Title: Avian Influenza Education for Families with Backyard Poultry in Southern California. Title: Integrated Development and Distribution of Catastrophic Poultry Emergency Procedures. Title: Development of a novel Newcastle disease virus vectored vaccine for Avian Influenza A subtype H9 virus. Title: Protection of Chickens against Avian Influenza by a Non-Replicating Adenovirus-Vectored Vaccine. Title: Enhancing avian influenza vaccine efficacy using TLR3 and CD40 signaling pathways. Title: Recombinant Lactococcus-based Vaccine for the Prevention of Avian Influenza Virus infection. Title: Development of Luminex and ELISA based immunoassay for the subtyping of sera from avian influenza virus (AIV) infected chickens and turkeys. Title: Development of a multiplex microsphere-based assay for the detection and differentiation of different hemagglutinin subtypes of influenza virus. Title: Multiplex detection of Avian Influenza HA and NA types using a microsphere assay. Title: Development of a species-independent ELISA for detection of influenza A antibodies directed against H6/H7/H9. Title: Avian Influenza Serological Tests for Differentiating Infected from Vaccinated Animals (DIVA). Title: Molecular Determinants of Interspecies Transmission of H3N2 Triple Reassortant Influenza A Viruses. Title: Role of PB1-F2 in Virulence, Transmission and Host Adaptation of Infleunza A viruses of Swine and Turkeys. Title: Viral Adaptation To Host Species - Assessing Viral Sequence Changes Associated With the Ability to Cross the Avian Species Barrier. Title: Understanding the Natural History of Avian Influenza Viruses in Wild Birds and Identifying Temporal-Spatial-Host-Genomic Relationships of Avian Influenza Viruses Infecting Wild Birds and Poultry. Expected outputs: Increased awareness in targeted audiences on the methods to prevent, control and eradicate influenza from poultry and livestock Additional/alternative vaccination and diagnostic strategies for influenza Increased understanding of mechanisms leading to the emergence of novel influenza strains
Project Methods
This is a multi-state, multidisciplinary effort focused on the prevention and control of avian influenza. Areas of research include education, basic molecular virology, animal work, vaccine and diagnostic development. The methods to be used and to evaluate the results are too many to be listed comprehensively in this limited space. Interested readers are encourage to read the full proposal.

Progress 02/01/11 to 01/31/13

Outputs
Target Audience: Nothing Reported Changes/Problems: Please see previous reports What opportunities for training and professional development has the project provided? Please see previous reports How have the results been disseminated to communities of interest? Please see previous reports What do you plan to do during the next reporting period to accomplish the goals? Please see previous reports

Impacts
What was accomplished under these goals? Please see previous reports

Publications


    Progress 02/01/11 to 01/31/13

    Outputs
    OUTPUTS: Summary of significance of AICAP based on the comments by the Scientific Advisory Committee: From the start of the AICAP program to the (near) end of it, the scientific quality of the AICAP investigators and projects has been extremely high. The AICAP program has brought together top scientists from the veterinary science field to work together. AICAP filled the gap in translational research that exists between high-end fundamental research and field applications. This has resulted in new generations of diagnostics tests brought from the fundamental drawing board into formats that are ready for head-to-head comparison in diagnostic laboratories. Such final evaluations are warranted and should be supported for e.g. the microsphere immuno-assay as a serological test and the branched-DNA microbeads for virus diagnostics that may both prove to be superior to - or have added value to - current diagnostic techniques. Likewise, several new generation vaccine candidates and technologies, most notably adenovirus and NDV vectors and live-attenuated vaccines, have been developed within AICAP that show great promise. Research on these vaccine candidates has progressed to the point of field-testing, and although vaccination is not the method of choice for AI prevention in the USA at present, such tests should be pursued in the light of international and future developments. The surveillance components of the AICAP program have been among the best in the world. AICAP has funded several short-term and a few longer-term projects. The projects that were funded throughout AICAP filled gaps in the US surveillance activities in long-term, hypothesis-driven, research. Although the direct applications of surveillance activities can not be measured within short-term projects like AICAP, the SAC recognizes that continuation of integrated surveillance projects to increase our understanding of the ecology of AI are very important for the more distant future. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: AICAP has spent ~10% of its budget on educational activities. Despite the relatively small financial input, these activities have had tremendous output. The classroom teaching projects, hands-on training activities, and on-line resources that have been developed were turned into largely self-sustainable projects by the experts of AICAP. The experiences and methods used should be shared with the larger community as they are exemplary for successful education and outreach programs. Although these projects are now self-sustainable, it is important to keep the educational programs up-to-date and to publish their models, protocols and results. Moreover, the SAC recommends full use of the AICAP expertise to build upon when similar activities are needed for these and other projects in the future. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

    Impacts
    Impact to stakeholders: The AICAP provided excellent value to the industry and accomplished three major goals that have the potential to significantly protect and benefit the US poultry industry. 1. While the US has a robust diagnostic capacity, we would benefit from improved speed and accuracy (both sensitivity and specificity), especially in subtype determination. Time is of the essence in an outbreak situation; we need the correct answer in real time. The AICAP researchers have developed several new diagnostic platforms that have great potential to deliver highly accurate diagnoses, including subtype determination, extremely rapidly. 2. While the US would initially prefer to handle a highly pathogenic AI incursion by a rapid stamping out program (hence the importance of fast, accurate diagnosis), recent international events (such as the foot and mouth disease outbreak in the UK) may cause us to reconsider this stance, especially should we fail to contain an outbreak in the initial stages. Should vaccination become necessary, better vaccines than the current killed virus vaccines would be desirable. In addition, the continued presence of the H5N1 situation around the world remains a threat to the domestic industry, and resolution of that problem with better vaccines not only would help feed people in developing economies and reduce the threat of a human pandemic, but also reduce the threat to the domestic industry. AICAP research has resulted in the development of several promising AI vaccine platforms with multiple advantages over current vaccines. 3. The educational component of AICAP was in some ways a pleasant surprise. Several highly effective, high-impact educational programs resulted from AICAP funding. One already appears to be sustainable beyond AICAP, and several others have good potential to continue to provide benefits long past AICAP, and all for a relatively modest investment. These programs could help prevent an incursion of AI into the commercial industry, increase the likelihood of earlier detection in the event of an incursion, and aid in a rapid response, potentially aiding in early containment and resolution. A remaining task that needs to occur after AICAP is to bring the advancements in diagnostics and vaccines to market so that they become available to the industry worldwide.

    Publications

    • No publications reported this period