RESUMO
PURPOSE: The goal of this work was to increase the knowledge of the parasitic helminths of the Crane hawk, Geranospiza caerulescens. METHODS: Two specimens of the Crane hawk were captured in Formosa province, Argentina, their viscera were preserved in 10% formalin and examined in the laboratory. RESULTS: Helminthological analysis revealed the presence of six helminth taxa (one Trematoda, four Nematoda, and one Acanthocephala). The morphometric study of these helminths and its comparison with previous reports, allowed us to describe a new species of Parastrigea (Digenea: Strigeidae) and report new host-parasite associations and geographical records. Parastrigea labiata n. sp. is mainly characterized by having forebody not divided and two long trumpet-shaped projections of dorsal lip, which emerge through the opening. Five taxa, previously known, Synhimantus (Dispharynx) resticula, Synhimantus (Synhimantus) rectus, Microtetrameres sp., Porrocaecum sp. and Centrorhynchus sp. are briefly described. CONCLUSIONS: Previous parasitological studies on G. caerulescens were carried out on material collected between 1817 and 1955, and seven species of helminths were reported. In this study, the six taxa of helminths found constitute new host records, which shows the importance of contemporary studies about this host. All helminths found have heteroxenous life cycles and birds are infected by trophic transmission. Crane hawk's diet includes small vertebrates and to a lesser extent large arthropods. The finding of five helminth species that use invertebrates as intermediate hosts could indicate an important consumption of invertebrates. This research expands the helminthological inventory of Argentinean birds and the knowledge of the helminths of G. caerulescens.
RESUMO
The COVID-19 pandemic has greatly impacted the Americas, the continent with the highest number of COVID-related deaths according to WHO statistics. In Latin America, strict confinement conditions at the beginning of the pandemic put recycling activity to a halt and augmented the consumption of plastic as a barrier to stop the spread of the virus. The lack of data to understand waste management dynamics complicates waste management strategy adjustments aimed at coping with COVID-19. As a novel contribution to the waste management data gap for Latin America, this study uses a virtual and participatory methodology that collects and generates information on household solid waste generation and composition. Data was collected between June and November 2021 in six countries in Latin America, with a total of 503 participants. Participants indicated that the pandemic motivated them to initiate or increase waste reduction (41%), waste separation (40%), and waste recovery (33%) activities. Forty-three percent of participants perceived an increase in total volume of their waste; however, the quantitative data showed a decrease in household waste generation in Peru (-31%), Honduras (-25%), and Venezuela (-82%). No changes in waste composition were observed. Despite the limited sample size, this data provides a much-needed approximation of household waste generation and composition in the pandemic situation during 2021.
Assuntos
COVID-19 , Resíduos Sólidos , Humanos , COVID-19/epidemiologia , Pandemias , América Latina/epidemiologia , Monitoramento AmbientalAssuntos
Humanos , Adolescente , Adolescente/fisiologia , Puberdade , Desenvolvimento do AdolescenteAssuntos
Humanos , Masculino , Feminino , Adolescente , Sono/fisiologia , Transtornos do Sono-VigíliaAssuntos
Humanos , Masculino , Feminino , Adolescente , Exame Físico , Transexualidade , Registros de Saúde Pessoal , Pessoas TransgêneroRESUMO
When subjected to molecular study, species of digeneans believed to be cosmopolitan are usually found to consist of complexes of species with narrower distributions. We present molecular and morphological evidence of transcontinental distributions in two species of Apharyngostrigea Ciurea, 1924, based on samples from Africa and the Americas. Sequences of cytochrome c oxidase I and, in some samples, internal transcribed spacer, revealed Apharyngostrigea pipientis (Faust, 1918) in Tanzania (first known African record), Argentina, Brazil, USA and Canada. Sequences from A. pipientis also match previously published sequences identified as Apharyngostrigea cornu (Zeder, 1800) originating in Mexico. Hosts of A. pipientis surveyed include definitive hosts from the Afrotropic, Neotropic and Nearctic, as well as first and second intermediate hosts from the Americas, including the type host and type region. In addition, metacercariae of A. pipientis were obtained from experimentally infected Poecilia reticulata, the first known record of this parasite in a non-amphibian second intermediate host. Variation in cytochrome c oxidase I haplotypes in A. pipientis is consistent with a long established, wide-ranging species with moderate genetic structure among Nearctic, Neotropic and Afrotropic regions. We attribute this to natural dispersal by birds and find no evidence of anthropogenic introductions of exotic host species. Sequences of CO1 and ITS from adult Apharyngostrigea simplex (Johnston, 1904) from Egretta thula in Argentina matched published data from cercariae from Biomphalaria straminea from Brazil and metacercariae from Cnesterodon decemmaculatus in Argentina, consistent with previous morphological and life-cycle studies reporting this parasite-originally described in Australia-in South America. Analyses of the mitochondrial genome and rDNA operon from A. pipientis support prior phylogenies based on shorter markers showing the Strigeidae Railliet, 1919 to be polyphyletic.
Assuntos
Trematódeos , Infecções por Trematódeos , Animais , Brasil , Genômica , Estágios do Ciclo de Vida , Filogenia , Trematódeos/genética , Infecções por Trematódeos/veterináriaRESUMO
Diplostomum ardeae Dubois, 1969 has seldom been reported since its description from the great blue heron (Ardea herodias L., 1758) in the USA. Sequences obtained in this study from the barcode region of cytochrome c oxidase 1 (CO1) in diplostomids from black-crowned night heron (Nycticorax nycticorax (L., 1758)) in Puerto Rico matched data from D. ardeae from A. herodias in the type region. We also obtained DNA barcodes from morphologically similar diplostomids from a rufescent tiger heron (Tigrisoma lineatum (Boddaert, 1783)) and from metacercariae from eye lenses of Trachelyopterus galeatus (Linnaeus, 1766) from the Paraná River basin in Argentina and Brazil, respectively. Barcodes matched (97-100% identity) in these South American adult and larval specimens as well as in recently published sequences from metacercariae from 11 other siluriform fishes from the same region. Barcodes from the South American species, which we describe as Diplostomum lunaschiae n. sp., differed from those of D. ardeae by 7.2-9.8%, and the new species differs from D. ardeae in its size, pharynx:oral sucker length ratio, egg:body length ratio, and distribution of vitellaria. As in prior phylogenetic analysis of CO1 sequences, both D. ardeae and D. lunaschiae n. sp. were not associated with Diplostomum. In more character-rich analyses of nuclear rDNA and of mitochondrial genomes, D. ardeae was an early divergent member of clades of species of Diplostomum. Consequently, we continue to consider D. ardeae and D. lunaschiae n. sp. members of Diplostomum, in contrast to recent suggestions that these species may belong to a different genus.
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Aves/parasitologia , Estágios do Ciclo de Vida , Filogenia , Trematódeos/classificação , Trematódeos/crescimento & desenvolvimento , Animais , Peixes-Gato/parasitologia , Código de Barras de DNA Taxonômico , DNA Ribossômico/genética , Genoma Mitocondrial/genética , Metacercárias/classificação , Metacercárias/genética , Porto Rico , Trematódeos/anatomia & histologia , Trematódeos/genéticaRESUMO
RESUMEN Las hernias lumbares son una patología rara que involucra herniación de los contenidos intraabdominales o retroperitoneales a través de debilidades congénitas o adquiridas en la pared abdominal posterolateral. El tratamiento quirúrgico es el recomendado, sin embargo, la vía de abordaje aún no está estandarizada en la literatura, pero existe mucha evidencia a favor de la laparoscopía con mejores resultados en el control del dolor posoperatorio, resultados estéticos y menor estancia hospitalaria. Se presenta el caso clínico de una paciente feme-nina de 55 años con cuadro de dolor lumbar izquierdo de 6 meses de evolución que fue diagnosticada de hernia del triángulo posterior por estudio de imagen. La reparación de su defecto herniario fue con tratamiento quirúrgico por vía laparoscópica.Palabras claves: Hernia; cirugía laparoscópica; procedimientos quirúrgicos operativos; patología quirúrgica; informes de caso.
ABSTRACT Lumbar hernia are a rare pathology that involves herniation of the intra-abdominal or retroperitoneal contents through congenital or ac-quired weaknesses in the posterolateral abdominal wall. Surgical treatment is recommended, however, the approach is not yet standard-ized in the literature, but there is much evidence in favor of laparoscopy with better results in postoperative pain control, cosmetic results, and shorter hospital stay. We present the clinical case of a 55-year-old female patient with a 6-month history of left lumbar pain who was diagnosed with posterior triangle hernia by imaging study. The repair of her hernia defect was with laparoscopic surgical treatment.Keywords: Hernia; laparoscopic surgery; operative surgical procedures; surgical pathology; case report.