August 19, 2025Avian PathologyOpen Access

Comparative pathogenesis of aerosol-induced colibacillosis reveals greater susceptibility in broiler chicks compared to layer chicks, with systemic clearance of bacteria but persistence in the bursa of Fabricius

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Discussion

Aerosol challenge reveals greater colibacillosis susceptibility in broiler chicks, suggesting critical pathogenesis factors.

Broiler chicks exhibit higher susceptibility to avian colibacillosis, persisting despite systemic bacterial clearance.
The ilux2-APEC effectively models the disease pathogenesis, highlighting differences in chick types.
Aerosol exposure leads to persistent colonization in the bursa of Fabricius in broiler chicks, indicating bacterial retention.
The findings emphasize the need for tailored approaches in managing colibacillosis in poultry.

Rehman et al. (2025) studied this question.

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