High Prevalence of Cryptococcus neoformans and Isolation of Other Opportunistic Fungi From Pigeon (Columba livia) Droppings in Northeast Iran

Ghaderi, Zahra; Eidi, Samaneh; Razmyar, Jamshid

doi:10.1647/2018-370

Cited by 8 publications

(10 citation statements)

References 22 publications

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“…As expected, C. neoformans was easily isolated by direct culture of pigeon dropping ( Chae et al, 2012a , b ; Soltani et al, 2013 ; Ellabib et al, 2016 ; Ghaderi et al, 2019 ; Pakshir et al, 2019 ; Mirpourian et al, 2021 ) and identification was confirmed by DNA sequencing. Sequence-based identification was confirmed by different ways.…”

Section: Discussionsupporting

confidence: 64%

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Cryptococcus neoformans and Other Opportunistic Cryptococcus Species in Pigeon Dropping in Saudi Arabia: Identification and Characterization by DNA Sequencing

et al. 2021

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The prevalent variants of Cryptococcus neoformans, and other Cryptococcus species in pigeon excreta in Western Region of Saudi Arabia were studied. Ninety pigeon dropping samples were plated directly on Niger seed agar, and suspected colonies were sequenced using Illumina MiSeq. Species identification was determined using sequence read mapping to reference genomes of the two C. neoformans variants. In addition, sequence reads were identified using the KmerFinder tool. internal transcribed spacer 2 in the rDNA was also used for fungal barcoding of none of the C. neoformans species using two fungal identification databases. Phylogeny was studied using CSI Phylogeny (Center for Genomic Epidemiology, Denmark). The C. neoformans var. grubii mitochondrion and chromosome 1 reference sequences (accession numbers NC_004336.1 and CP022321.1, respectively) were used for sequence comparison and variant calling. Fifteen Cryptococcus isolates were isolated, 11 were identified as C. neoformans var. grubii, and 4 were found to be other opportunistic Cryptococcus species. Phylogeny analysis of C. neoformans var. grubii isolates showed a high degree of similarity between the C. neoformans isolates especially at the mitochondrial genome level. This study supports the fact that pathogenic and opportunistic Cryptococcus species are prevalent in domestic bird excreta which is an easy source of infection in the susceptible population.

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Section: Discussionsupporting

confidence: 64%

“…2013; Ellabib et al, 2016;Ghaderi et al, 2019;Pakshir et al, 2019;Mirpourian et al, 2021) and identification was confirmed by DNA sequencing. Sequence-based identification was confirmed by different ways.…”

Section: Discussionmentioning

confidence: 90%

Cryptococcus neoformans and Other Opportunistic Cryptococcus Species in Pigeon Dropping in Saudi Arabia: Identification and Characterization by DNA Sequencing

et al. 2021

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“…Moreover, a study showed that the prevalence of cryptococcal infection in HIV-infected patients with a CD4 cell count of < 100 cells/mm 3 was very low (< 3%) [92]. In fact, C. neoformans is highly prevalent in pigeon droppings in Iran, allowing its transmission to the environment and consequently to the patients at risk of developing CM [93,94].…”

Section: Cryptococcal Meningitismentioning

confidence: 99%

Update on invasive fungal infections in the Middle Eastern and North African region

et al. 2020

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In the recent years, the epidemiology of invasive fungal infections (IFIs) has changed worldwide. This is remarkably noticed with the significant increase in high-risk populations. Although surveillance of such infections is essential, data in the Middle Eastern and North African (MENA) region remain scarce. In this paper, we reviewed the existing data on the epidemiology of different IFIs in the MENA region. Epidemiological surveillance is crucial to guide optimal healthcare practices. This study can help to guide appropriate interventions and to implement antimicrobial stewardship and infection prevention and control programs in countries.

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“…Es conocido que algunos agentes infecciosos tienen importancia para la salud pública o para los sistemas de producción animal. Dentro de las más conocidas se encuentran la histoplasmosis, la enfermedad de Newcastle, psitacosis, criptococcosis, coccidiosis, toxoplasmosis, pseudotuberculosis y salmonelosis (7,8,9,10).…”

Section: Discussionunclassified

“…Son cuantiosas las pérdidas económicas atribuidas a las palomas, las cuales se ven representadas en daños a los alimentos almacenados, deterioro de edificios e instalaciones, competencia por espacio y alimento con la avifauna nativa (5,6) Sin embargo, los efectos más graves están representados en la potencial fuente de trasmisión de agentes zoonóticos que afectan la salud pública como, histoplasmosis, ornitosis, salmonelosis, cryptococcosis, campilobacteriosis y clamidiosis (7,8,9,10). Varias enfermedades afectan la salud de las palomas, siendo el parasitismo interno y externo una de las más frecuentemente repor tadas (11,12,13).…”

Section: Introductionunclassified

Identificación de ecto y endoparásitos en palomas domésticas (Columba livia) del área urbana de Villavicencio, Meta, Colombia

et al. 2021

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Objetivo. Determinar la presencia de parásitos internos y externos en palomas comunes (Columba livia) del área urbana de la ciudad de Villavicencio, Meta, durante la transición verano a invierno del año 2017. Materiales y Métodos. Se capturaron 72 palomas de tres comunas de la ciudad y sometidas a inspección visual para parásitos externos, a la vez se obtuvo muestras de material fecal para análisis coprológico mediante el método de Sheather’s. Se realizaron frotis con las muestras de sangre y tinción con Giemsa para agentes hemotrópicos. Resultados. En el 100% de las muestras se encontraron dos especies de parásitos externos: piojos malófagos (Columbicola columbae) y mosca de paloma (Pseudolynchia canariensis). Dentro de los parásitos internos se encontraron dos protozoarios: Haemoproteus spp. 26.5% (9/34) en frotis sanguíneo y Eimeria spp. 36% (26/72) en heces, seguido de los nematodos: Ascaridia spp. 4.2% (3/72) y Capillaria spp. 13.8% (10/72) y cestodos: Raillietina spp. 1.38% (1/72). No se encontró asociación del parasitismo con el sexo de la paloma o la comuna de muestreo. Conclusiones. La presencia de parásitos internos fue baja, excepto para Eimeria spp., estos datos representan información importante del riesgo potencial para la salud animal y humana, especialmente para poblaciones comerciales de aves y la avifauna nativa. Estos resultados indican que se requieren programas sanitarios y de control en las poblaciones de palomas de la ciudad.

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High Prevalence of Cryptococcus neoformans and Isolation of Other Opportunistic Fungi From Pigeon (Columba livia) Droppings in Northeast Iran

Cited by 8 publications

References 22 publications

Cryptococcus neoformans and Other Opportunistic Cryptococcus Species in Pigeon Dropping in Saudi Arabia: Identification and Characterization by DNA Sequencing

Cryptococcus neoformans and Other Opportunistic Cryptococcus Species in Pigeon Dropping in Saudi Arabia: Identification and Characterization by DNA Sequencing

Update on invasive fungal infections in the Middle Eastern and North African region

Identificación de ecto y endoparásitos en palomas domésticas (Columba livia) del área urbana de Villavicencio, Meta, Colombia

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