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biosecurity and viral shedding
In multi age production sites, how does the implementation of forced air ventilation filtering and strict personnel flow control quantitatively reduce lateral transmission of high mutable Infectious Bronchitis strains?
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6 Replies
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Comprehensive Approach needed
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In multi-age poultry farms, forced air ventilation with proper filtration helps reduce airborne virus particles moving between houses, lowering the overall pathogen load in the air. This significantly decreases the chance of Infectious Bronchitis virus spreading laterally through dust and aerosols. Strict personnel flow control—such as dedicated staff per house, controlled entry order (younger to older birds), and biosecurity barriers—reduces mechanical transmission via clothing, equipment, and hands
Quantitatively, studies and field observations in biosecure systems often show <strong data-start=”587″ data-end=”654″>large reductions in lateral transmission risk (commonly 50–90%) when these measures are properly implemented together. This leads to lower infection pressure, fewer outbreaks, reduced viral mutation spread between houses, and improved flock uniformity and performance.
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beyond filtration and personnel flow, adding negative pressure differentials between age zones can further reduce airborne cross-contamination.
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Integrated approach can achieve a <strong jsaction=”” jscontroller=”zYmgkd” data-sfc-root=”c” jsuid=”wmlYYc_g” data-sfc-cb=”” data-processed=”true”>2.86 log (approx. 99.8%) reduction in viral aerosols
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they both when implemented can be effective more than 90-95% but very costly especially forced air filtration system.
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👍
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