tetano
Editor, Senior Moderator
Prev Vet Med
. 2024 Aug 3:231:106302.
doi: 10.1016/j.prevetmed.2024.106302. Online ahead of print. Amplification of avian influenza virus circulation along poultry marketing chains in Bangladesh: A controlled field experiment
Lisa Kohnle[SUP] 1 [/SUP], Tridip Das[SUP] 2 [/SUP], Md Helal Uddin[SUP] 3 [/SUP], Sanjib Chandra Nath[SUP] 4 [/SUP], Md Abu Shoieb Mohsin[SUP] 5 [/SUP], Rashed Mahmud[SUP] 6 [/SUP], Paritosh Kumar Biswas[SUP] 7 [/SUP], Md Ahasanul Hoque[SUP] 8 [/SUP], Dirk Udo Pfeiffer[SUP] 9 [/SUP], Guillaume Fournié[SUP] 10 [/SUP]
Affiliations
The prevalence of avian influenza viruses is commonly found to increase dramatically as birds are transported from farms to live bird markets. Viral transmission dynamics along marketing chains are, however, poorly understood. To address this gap, we implemented a controlled field experiment altering chicken supply to a live bird market in Chattogram, Bangladesh. Broilers and backyard chickens traded along altered (intervention) and conventional (control) marketing chains were tested for avian influenza viruses at different time points. Upon arrival at the live bird market, the odds of detecting avian influenza viruses did not differ between control and intervention groups. However, 12 h later, intervention group odds were lower, particularly for broilers, indicating that viral shedding in live bird markets resulted partly from infections occurring during transport and trade. Curtailing avian influenza virus prevalence in live bird markets requires mitigating risk in marketing chain nodes preceding chickens' delivery at live bird markets.
Keywords: H5N1; H9N2; avian influenza; live bird market; poultry; value chain.
. 2024 Aug 3:231:106302.
doi: 10.1016/j.prevetmed.2024.106302. Online ahead of print. Amplification of avian influenza virus circulation along poultry marketing chains in Bangladesh: A controlled field experiment
Lisa Kohnle[SUP] 1 [/SUP], Tridip Das[SUP] 2 [/SUP], Md Helal Uddin[SUP] 3 [/SUP], Sanjib Chandra Nath[SUP] 4 [/SUP], Md Abu Shoieb Mohsin[SUP] 5 [/SUP], Rashed Mahmud[SUP] 6 [/SUP], Paritosh Kumar Biswas[SUP] 7 [/SUP], Md Ahasanul Hoque[SUP] 8 [/SUP], Dirk Udo Pfeiffer[SUP] 9 [/SUP], Guillaume Fournié[SUP] 10 [/SUP]
Affiliations
- PMID: 39137554
- DOI: 10.1016/j.prevetmed.2024.106302
The prevalence of avian influenza viruses is commonly found to increase dramatically as birds are transported from farms to live bird markets. Viral transmission dynamics along marketing chains are, however, poorly understood. To address this gap, we implemented a controlled field experiment altering chicken supply to a live bird market in Chattogram, Bangladesh. Broilers and backyard chickens traded along altered (intervention) and conventional (control) marketing chains were tested for avian influenza viruses at different time points. Upon arrival at the live bird market, the odds of detecting avian influenza viruses did not differ between control and intervention groups. However, 12 h later, intervention group odds were lower, particularly for broilers, indicating that viral shedding in live bird markets resulted partly from infections occurring during transport and trade. Curtailing avian influenza virus prevalence in live bird markets requires mitigating risk in marketing chain nodes preceding chickens' delivery at live bird markets.
Keywords: H5N1; H9N2; avian influenza; live bird market; poultry; value chain.