The use of serologic assaysin avian medicine

Phalen, David N.

doi:10.1053/saep.2001.22050

Cited by 14 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Age, however, was not a strong predictor of overall bacterial prevalence or seroprevalence. Adult birds tended to have higher seroprevalence compared to subadults, which may be due to greater cumulative exposure or long‐term antibody persistence (Phalen, 2001). Conversely, we found that in non‐breeding birds, subadults had higher PCR prevalence than adults.…”

Section: Discussionmentioning

confidence: 99%

“…We found a diagnostic agreement of 79% between our PCR and serological assay results. It is unsurprising that there was not 100% agreement, as cloacal shedding starts earlier in infection compared to the production of IgG antibodies (Phalen, 2005) and IgG antibodies are thought to persist for several months following infection (Phalen, 2001). Additionally, cloacal shedding of Chlamydia can be intermittent (Harkinezhad et al., 2009), which can result in false‐negative PCR results.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Chlamydial diversity and predictors of infection in a wild Australian parrot, the Crimson Rosella ( Platycercus elegans )

Stokes

Martens

Jelocnik

et al. 2020

Transbounding Emerging Dis

View full text Add to dashboard Cite

The Chlamydia are a diverse genus of intracellular bacteria which can infect and cause disease in many species of animals, and in humans, with 14 characterized and three Candidatus species currently described (Cheong et al., 2019;Laroucau et al., 2019). Related bacteria in the order Chlamydiales but outside the Chlamydia genus are also increasingly being identified and have been reported in humans,

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Chlamydial diversity and predictors of infection in a wild Australian parrot, the Crimson Rosella ( Platycercus elegans )

Stokes

Martens

Jelocnik

et al. 2020

Transbounding Emerging Dis

View full text Add to dashboard Cite

show abstract

“…These birds may be in an early stage of infection, and not yet producing a detectable immune response 50 , or alternatively, they may have had low-level infections, which did not induce an immune response, since the infectious dose of a pathogen can affect host antibody response 64 . Two birds tested C. psittaci positive on initial capture, but seronegative upon their recaptures several months later; it is possible these birds seroconverted after initial capture, then stopped producing IgG antibodies following recovery 65 . A limitation is that we do not know the precise sensitivity or specificity of the ImmunoComb.…”

Section: Discussionmentioning

confidence: 99%

Species, sex and geographic variation in chlamydial prevalence in abundant wild Australian parrots

Stokes

Martens

Walder

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Chlamydia psittaci (order: Chlamydiales) is a globally distributed zoonotic bacterium that can cause potentially fatal disease in birds and humans. Parrots are a major host, yet prevalence and risk factors for infection in wild parrots are largely unknown. Additionally, recent research suggests there is a diverse range of novel Chlamydiales circulating in wildlife. We therefore sampled seven abundant parrot species in south-eastern Australia, taking cloacal swabs and serum from n = 132 wild adults. We determined C. psittaci and Chlamydiales prevalence and seroprevalence, and tested for host species, sex, geographical and seasonal differences, and temporal changes in individual infection status. Across all species, Chlamydiales prevalence was 39.8% (95% CI 31.6, 48.7), C. psittaci prevalence was 9.8% (95% CI 5.7, 16.3) and C. gallinacea prevalence was 0.8% (95% CI 0.1, 4.5). Other Chlamydiales species were not identified to species level. We identified two C. psittaci strains within the 6BC clade, which is highly virulent in humans. Seroprevalence was 37.0% (95% CI 28.5, 46.4). Host species (including crimson rosellas, galahs, sulphur-crested cockatoos and blue-winged parrots) differed in seroprevalence and Chlamydiales prevalence. Galahs had both highest Chlamydiales prevalence (54.8%) and seroprevalence (74.1%). Seroprevalence differed between sites, with a larger difference in males (range 20–63%) than females (29–44%). We reveal a higher chlamydial prevalence than previously reported in many wild parrots, with implications for potential reservoirs, and transmission risks to humans and other avian hosts.

show abstract

“…This name is due to the disease it causes, the main clinical signs of which are the gradual loss of feathers or abnormal feathering and an overgrown or irregular beak. BFDV transmission commonly occurs through inhalation or ingestion of the virus, but it can also occur vertically, passing from mother to offspring [42]. This disease causes high morbidity and mortality, especially of chicks.…”

Section: Most Important Viruses For Psittacine Birdsmentioning

confidence: 99%

Viral Diagnosis in Psittacine Birds: A Scientometric and Systematic Review of 47 Years

Antonio,

Fraga,

Silva

2024

Animals

View full text Add to dashboard Cite

The first reports of viruses in psittacine birds date back to the early 1970s. Here, we elucidate the differences among these previous studies and the advances achieved. The objective of this study was to carry out a comprehensive review using both scientometric and systematic methods to analyze the evolution of published studies on viruses in psittacine birds up to 2022. The search descriptors “virus”, “diagnosis”, and “Psittaciformes” were used to find the articles of interest for this study. A total of 118 articles were manually selected, and the scientometric data were organized using the software VOSviewer® version 1.6.18. The present review revealed that: (i) on average, 2.5 articles/year on the diagnosis of viral infection in psittacine birds were published since 1975; (ii) the most productive research groups are concentrated in three countries: Australia, the United States, and Germany; (iii) the most important virus in psittacine birds is the Circovirus, which causes psittacine beak and feather disease; (iv) the diagnostic method of choice is polymerase chain reaction (PCR); and (v) the most studied psittacine birds were those in the Psittacidae family that were kept in captivity.

show abstract

The use of serologic assaysin avian medicine

Cited by 14 publications

References 30 publications

Chlamydial diversity and predictors of infection in a wild Australian parrot, the Crimson Rosella ( Platycercus elegans )

Chlamydial diversity and predictors of infection in a wild Australian parrot, the Crimson Rosella ( Platycercus elegans )

Species, sex and geographic variation in chlamydial prevalence in abundant wild Australian parrots

Viral Diagnosis in Psittacine Birds: A Scientometric and Systematic Review of 47 Years

Contact Info

Product

Resources

About