Abstract:
:Gallibacterium anatis is a Gram-negative bacterium of the Pasteurellaceae family that resides normally in the respiratory and reproductive tracts in poultry. It is a major cause of oophoritis, salpingitis, and peritonitis, decreases egg production and mortality in hens thereby severely affecting animal welfare and overall productivity by poultry industries across Europe, Asia, America, and Africa. In addition, it has the ability to infect wider host range including domesticated and free-ranging avian hosts as well as mammalian hosts such as cattle, pigs and human. Evaluating the common virulence factors including outer membrane vesicles, fimbriae, capsule, metalloproteases, biofilm formation, hemagglutinin, and determining novel factors such as the RTX-like toxin GtxA, elongation factor-Tu, and clustered regularly interspaced short palindromic repeats (CRISPR) has pathobiological, diagnostic, prophylactic, and therapeutic significance. Treating this bacterial pathogen with traditional antimicrobial drugs is discouraged owing to the emergence of widespread multidrug resistance, whereas the efficacy of preventing this disease by classical vaccines is limited due to its antigenic diversity. It will be necessary to acquire in-depth knowledge on important virulence factors, pathogenesis and, concerns of rising antibiotic resistance, improvised treatment regimes, and novel vaccine candidates to effectively tackle this pathogen. This review substantially describes the etio-epidemiological aspects of G. anatis infection in poultry, and updates the recent development in understanding the pathogenesis, organism evolution and therapeutic and prophylactic approaches to counter G. anatis infection for safeguarding the welfare and health of poultry.
journal_name
Vet Qjournal_title
The veterinary quarterlyauthors
Narasinakuppe Krishnegowda D,Dhama K,Kumar Mariappan A,Munuswamy P,Iqbal Yatoo M,Tiwari R,Karthik K,Bhatt P,Reddy MRdoi
10.1080/01652176.2020.1712495keywords:
["Gallibacterium anatis","control","diagnosis","epidemiology","pathogenesis","pathology","poultry","prevention","review","treatment","virulence factors"]subject
Has Abstractpub_date
2020-12-01 00:00:00pages
16-34issue
1eissn
0165-2176issn
1875-5941journal_volume
40pub_type
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