Survey of<i>Campylobacter jejuni</i>and Campylobacter<i>coli</i>in different taxa and ecological guilds of migratory birds

Sensale, Mariangela; Cuomo, Alessandra; Dipineto, Ludovico; Santaniello, Antonio; Calabria, Mariarosaria; Menna, Lucia Francesca; Fioretti, Alessandro

doi:10.4081/ijas.2006.291

Cited by 16 publications

(22 citation statements)

References 2 publications

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“…Campylobacter occurrence in kelp gulls (12%) and greater crested terns (16%) was similar to that reported in yellow‐legged gulls Larus michahellis in southern Europe (10%, Ramos et al ., ), but lower than in other gulls in the eastern coast of United States (laughing gulls Leucophaeus atricilla , 33%) and in northern Europe (black‐headed gulls Chroicocephalus ridibundus , 28–36%) (Broman et al ., ; Keller et al ., ). The correlation between Campylobacter prevalence in wild birds and their feeding habits (Sensale et al ., ; Hald et al ., ), points to foraging in human waste and sewage as important risk factors of infection (Ramos et al ., ). Contrary to what would be expected, the highest Campylobacter prevalence was found in a colony (Velddrif) from a semi‐rural area.…”

Section: Discussionmentioning

confidence: 98%

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Moré

Ayats

Ryan

et al. 2017

Environmental Microbiology

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Zoonotic thermophilic Campylobacter and nontyphoidal Salmonella enterica are a major cause of foodborne human gastroenteritis worldwide. There is little information about reservoirs of these zoonotic agents in Africa. Thus, chicks of kelp gulls (Larus dominicanus, n = 129) and greater crested terns (Thalasseus bergii, n = 100) were studied at five colonies on the Western Cape coast (South Africa) during summer 2013/2014. Campylobacter spp. occurrence was 14.0% (CI : 9.9-19.3), with C. jejuni the most frequently isolated species, whilst that of Salmonella was 27.5% (CI : 21.9-33.9) overall, with a higher prevalence in gulls (43.0%, CI : 34.8-52.4) than terns (7.0%, CI : 3.1-14.4). Among the 16 different S. enterica serovars found, Anatum, Enteritidis and Hadar were the most frequent. The same or highly similar pulsed-field gel electrophoresis genotype was found in some Salmonella isolates from seabirds and humans presenting with salmonellosis in Cape Town hospitals. Both Campylobacter and Salmonella isolates exhibited antimicrobial resistance to several agents, including critically important antimicrobials (quinolones, tetracyclines and β-lactams) and multidrug resistance in Salmonella serovars from kelp gulls. Our results highlight the importance of seabirds as reservoirs of Campylobacter and Salmonella resistant strains and their role in the maintenance and transmission of these bacteria in the environment, with implications for public health.

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Section: Discussionmentioning

confidence: 98%

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Moré

Ayats

Ryan

et al. 2017

Environmental Microbiology

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“…The presence of strains of Helicobacter was detected in all shorebird populations of this study. The presence of this bacterial genus in birds has been studied by several authors (Waldenstrom et al ., , , ; Sensale et al ., ; Lu et al ., ; French et al ., ). Shorebirds and geese caught on the Swedish coastal meadows were considered reservoirs of human infections because they harbored a large number of Helicobacter strains (Waldenstrom et al ., , ).…”

Section: Discussionmentioning

confidence: 99%

Diversity of cloacal microbial community in migratory shorebirds that use the Tagus estuary as stopover habitat and their potential to harbor and disperse pathogenic microorganisms

Santos

Pardal

Proença

et al. 2012

FEMS Microbiol Ecol

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The diversity of the cloacal microbial community in migratory shorebirds, caught at the Tagus estuary, Portugal, was assessed by cultivation (R2A and Nutrient Agar media) and denaturing gradient gel electrophoresis profiling (DGGE) to provide a better understanding of the birds' potential to harbor and disperse pathogens. Three different bird species belonging to four different populations were studied: common redshank (Tringa totanus), black-winged stilt (Himantopus himantopus) and nominate and Icelandic populations of black-tailed godwit (Limosa limosa). DGGE profiling and partial 16S RNA gene sequences of 240 isolates, and 26 DGGE bands resulting in 58 clones, were analyzed. Most isolates were members of the phylum Firmicutes and Actinobacteria and only a small portion belonged to the Proteobacteria and DeinococcusThermus phyla. Potentially pathogenic strains carried by the birds were found such as Helicobacter and Staphylococcus in all bird species, and Clostridium, Mycobacterium, Rhodococcus, Legionella and Corynebacterium in black-winged stilts. Unexpectedly, bacteria from the phylum Deinococcus-Thermus were isolated in shorebirds and were present in all the bird species studied.

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“…Similarly, Sensale et al . () found higher Campylobacter spp. prevalence in ground foragers and arboreal/herbaceous insectivores and no Campylobacter spp.…”

Section: Conceptual Framework For Understanding Spillover Of Enteric mentioning

confidence: 93%

“…habitat association), sampling biases resulting from lack of data for most species, or both. For example, as summarized in our literature review above, primary studies have generally found lower enteric pathogen prevalence in granivorous species and higher enteric pathogen prevalence in ground‐foraging species which may have lower and higher enteric pathogen exposure, respectively (Waldenström et al ., ; Sensale et al ., ; Skov et al ., ; Hald et al ., ). By contrast, we found only two differences across many comparisons.…”

Section: Meta‐analysis Of Enteric Pathogen Prevalence In Wild Birdsmentioning

confidence: 98%

Are we overestimating risk of enteric pathogen spillover from wild birds to humans?

2020

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Enteric illnesses remain the second largest source of communicable diseases worldwide, and wild birds are suspected sources for human infection. This has led to efforts to reduce pathogen spillover through deterrence of wildlife and removal of wildlife habitat, particularly within farming systems, which can compromise conservation efforts and the ecosystem services wild birds provide. Further, Salmonella spp. are a significant cause of avian mortality, leading to additional conservation concerns. Despite numerous studies of enteric bacteria in wild birds and policies to discourage birds from food systems, we lack a comprehensive understanding of wild bird involvement in transmission of enteric bacteria to humans. Here, we propose a framework for understanding spillover of enteric pathogens from wild birds to humans, which includes pathogen acquisition, reservoir competence and bacterial shedding, contact with people and food, and pathogen survival in the environment. We place the literature into this framework to identify important knowledge gaps. Second, we conduct a meta-analysis of prevalence data for three human enteric pathogens, Campylobacter spp., E. coli, and Salmonella spp., in 431 North American breeding bird species. Our literature review revealed that only 3% of studies addressed the complete system of pathogen transmission. In our meta-analysis, we found a Campylobacter spp. prevalence of 27% across wild birds, while prevalence estimates of pathogenic E. coli (20%) and Salmonella spp. (6.4%) were lower. There was significant bias in which bird species have been tested, with most studies focusing on a small number of taxa that are common near people (e.g. European starlings Sturnus vulgaris and rock pigeons Columba livia) or commonly in contact with human waste (e.g. gulls). No pathogen prevalence data were available for 65% of North American breeding bird species, including many commonly in contact with humans (e.g. black-billed magpie Pica hudsonia and great blue heron Ardea herodias), and our metadata suggest that some under-studied species, taxonomic groups, and guilds may represent equivalent or greater risk to human infection than heavily studied species. We conclude that current data do not provide sufficient information to determine the likelihood of enteric pathogen spillover from wild birds to humans and thus preclude management solutions. The primary focus in the literature on pathogen prevalence likely overestimates the probability of enteric pathogen spillover from wild birds to humans because a pathogen must survive long enough at an infectious dose and be a strain that is able to colonize humans to cause infection. We propose that future research should focus on the large number of under-studied species commonly in contact with people and food production and demonstrate shedding of bacterial strains pathogenic to humans into the environment where people may contact them. Finally, studies assessing the duration and intensity of bacterial shedding and survival of bacteria in the environme...

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Survey ofCampylobacter jejuniand Campylobactercoliin different taxa and ecological guilds of migratory birds

Cited by 16 publications

References 2 publications

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Seabirds (Laridae) as a source of Campylobacter spp., Salmonella spp. and antimicrobial resistance in South Africa

Diversity of cloacal microbial community in migratory shorebirds that use the Tagus estuary as stopover habitat and their potential to harbor and disperse pathogenic microorganisms

Are we overestimating risk of enteric pathogen spillover from wild birds to humans?

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