RESUMO
The African fig fly, Zaprionus indianus (Gupta), is a generalist fruit fly that typically breeds in decaying fruits from over 70 plant species. The species has spread globally from its native range in tropical Africa, becoming an invasive pest on ripening figs in Brazil. First reported in the United States in 2005 in Florida, Z. indianus has since been documented as far north as Canada and is hypothesized to recolonize northwards from southern refugia each year. We sampled drosophilid communities over the growing season at 2 orchards in Virginia from 2020 to 2022 and 11 orchards along the East Coast during the fall of 2022 to quantify the abundance of Z. indianus relative to other drosophilids across locations, seasons, and fruit crops. Massachusetts had the northernmost population, with no Z. indianus detected in Maine and no correlation between latitude and relative abundance. Variation in Z. indianus relative abundance was high between nearby orchards and abundance was higher on peaches relative to apples within orchards. Comparisons of seasonal abundance curves between 2 Virginia orchards showed similar dynamics across years with individuals first detected around July and becoming absent around December, with peaks in late summer and mid-fall. The variation in seasonal and latitudinal abundance shown here highlights a need for broader sampling to accurately characterize the range, spread, and environmental tolerances of Z. indianus in North America.
Assuntos
Drosophilidae , Humanos , Animais , Drosophila , Virginia , Frutas , Brasil , FloridaRESUMO
Understanding factors that influence a species' distribution and abundance across the annual cycle is required for range-wide conservation. Thousands of imperiled red knots (Calidris cantus rufa) stop on Virginia's barrier islands each year to replenish fat during spring migration. We investigated the variation in red knot presence and flock size, the effects of prey on this variation, and factors influencing prey abundance on Virginia's barrier islands. We counted red knots and collected potential prey samples at randomly selected sites from 2007-2018 during a two-week period during early and peak migration. Core samples contained crustaceans (Orders Amphipoda and Calanoida), blue mussels (Mytilus edulis), coquina clams (Donax variabilis), and miscellaneous prey (horseshoe crab eggs (Limulus polyphemus), angel wing clams (Cyrtopleura costata), and other organisms (e.g., insect larvae, snails, worms)). Estimated red knot peak counts in Virginia during 21-27 May were highest in 2012 (11,959) and lowest in 2014 (2,857; 12-year peak migration [Formula: see text] = 7,175, SD = 2,869). Red knot and prey numbers varied across sampling periods and substrates (i.e., peat and sand). Red knots generally used sites with more prey. Miscellaneous prey ([Formula: see text] = 2401.00/m2, SE = 169.16) influenced red knot presence at a site early in migration, when we only sampled on peat banks. Coquina clams ([Formula: see text] = 1383.54/m2, SE = 125.32) and blue mussels ([Formula: see text] = 777.91/m2, SE = 259.31) affected red knot presence at a site during peak migration, when we sampled both substrates. Few relationships between prey and red knot flock size existed, suggesting that other unmeasured factors determined red knot numbers at occupied sites. Tide and mean daily water temperature affected prey abundance. Maximizing the diversity, availability, and abundance of prey for red knots on barrier islands requires management that encourages the presence of both sand and peat bank intertidal habitats.
Assuntos
Bivalves , Charadriiformes , Animais , Ecossistema , Areia , Estações do Ano , VirginiaRESUMO
This study investigates the potential of the Virgínia Portocarrero archive, at Casa de Oswaldo Cruz/Fiocruz. It was donated in life by Portocarrero, a Brazilian nurse and Second World War veteran. The documents include records from her education and training and show evidence of a determination to preserve her memories from the frontline and after the war, in a symbolic battle to record an essentially female story in a characteristically male setting. The archive contains a broad variety of types of historical sources, notably a diary on her participation in the conflict, demonstrating everyday and unusual aspects of her work as a health professional at that dramatic time in human history.
Objetivou-se apontar as potencialidades do Fundo Virgínia Portocarrero, da Casa de Oswaldo Cruz/Fiocruz. O acervo foi doado em vida por sua titular, enfermeira brasileira veterana da Segunda Guerra Mundial. Dessa documentação constam registros de sua formação profissional e acadêmica, e é percebida sua determinação em preservar as reminiscências do front de batalha e do período pós-guerra, numa luta simbólica pelo registro de uma história essencialmente feminina em um cenário emblematicamente masculino. Integra o acervo ampla variedade de tipologias de fontes históricas, com destaque para um diário de sua participação no conflito, demonstrando aspectos cotidianos e peculiares de sua atuação profissional na saúde naquele momento dramático da história da humanidade.
Assuntos
Arquivos , II Guerra Mundial , Brasil , Feminino , História do Século XX , Humanos , Masculino , VirginiaRESUMO
OBJECTIVE: To determine presence of spatial clustering or dispersion of pre and postnatally detected hypoplastic left heart syndrome (HLHS) and d-transposition of the great arteries (TGA) cases. STUDY DESIGN: This retrospective study examined all patients with a prenatal or postnatal diagnosis of HLHS or TGA who had an initial visit or hospitalization at our tertiary care center over a 5-year period from 2012 to 2016 (n = 105). Using geographic information systems software, the nearest neighbor ratio (NNR) tool was used to determine whether statistically significant clustering or dispersion occurred. RESULTS: Geographic clustering was observed among prenatally diagnosed pooled cases of HLHS and TGA and all total cases (NNR = 0.73 and 0.66, respectively), but not postnatally detected cases (NNR = 1.08). Notably, there was significant dispersion of postnatally detected TGA cases (NNR = 1.22) There was no pattern for prenatally detected TGA or HLHS when analyzed individually. CONCLUSIONS: The spatial distribution of HLHS and TGA is not random; these conditions occur in geographic clusters. Clustering of all patients in the study population and dispersion of postnatal diagnosis of TGA represent opportunities for improved delivery of fetal cardiac care.
Assuntos
Síndrome do Coração Esquerdo Hipoplásico/epidemiologia , Transposição dos Grandes Vasos/epidemiologia , District of Columbia/epidemiologia , Feminino , Humanos , Síndrome do Coração Esquerdo Hipoplásico/diagnóstico , Recém-Nascido , Masculino , Maryland/epidemiologia , Gravidez , Diagnóstico Pré-Natal , Estudos Retrospectivos , Transposição dos Grandes Vasos/diagnóstico , Virginia/epidemiologiaRESUMO
OBJECTIVE: To explore the relationship between well-child visit (WCV) attendance during early childhood and age at autism spectrum disorder (ASD) diagnosis using data drawn from a statewide all-payer claims database. STUDY DESIGN: We used a correlational study design with longitudinal data drawn from the Virginia All-Payer Claims Database. All children born in 2011 with a diagnosis of ASD were included (n = 253). Survival analysis determined the impact of WCV attendance on ASD diagnosis at each American Academy of Pediatrics-recommended early childhood visit, and the 5-year visit. RESULTS: Survival analysis revealed a significant impact of WCV attendance at the 24-month, 3-, and 4-year visits on earlier ASD diagnosis. Children who attended the 24-month visit were diagnosed nearly 10 months earlier than those who did not. Overall, children with ASD attended fewer than 50% of visits during early childhood. CONCLUSIONS: Promoting consistent WCV attendance during early childhood is an actionable strategy for improving early identification of ASD. Further exploration is needed to determine barriers to visit attendance and the impact of patterns of early childhood WCV attendance on age of ASD diagnosis. Development and implementation of interventions to promote adherence to the American Academy of Pediatrics-recommended visits is needed.
Assuntos
Transtorno do Espectro Autista/diagnóstico , Utilização de Instalações e Serviços/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Serviços Preventivos de Saúde/estatística & dados numéricos , Pré-Escolar , Diagnóstico Precoce , Feminino , Humanos , Lactente , Estudos Longitudinais , Masculino , Modelos de Riscos Proporcionais , Estudos Retrospectivos , VirginiaRESUMO
OBJECTIVE: To provide epidemiological information on animal and human cases of rabies occurring in the United States during 2019 and summaries of 2019 rabies surveillance for Canada and Mexico. ANIMALS: All animals submitted for laboratory diagnosis of rabies in the United States during 2019. PROCEDURES: State and territorial public health departments and USDA Wildlife Services provided data on animals submitted for rabies testing in the United States during 2019. Data were analyzed temporally and geographically to assess trends in domestic and wildlife rabies cases. RESULTS: During 2019, 53 jurisdictions submitted 97,523 animal samples for rabies testing, of which 94,770 (97.2%) had a conclusive (positive or negative) test result. Of these, 4,690 tested positive for rabies, representing a 5.3% decrease from the 4,951 cases reported in 2018. Texas (n = 565 [12.0%]), New York (391 [8.3%]), Virginia (385 [8.2%]), North Carolina (315 [6.7%]), California (276 [5.9%]), and Maryland (269 [5.7%]) together accounted for almost half of all animal rabies cases reported in 2019. Of the total reported rabid animals, 4,305 (91.8%) were wildlife, with raccoons (n = 1,545 [32.9%]), bats (1,387 [29.6%]), skunks (915 [19.5%]), and foxes (361 [7.7%]) as the primary species confirmed with rabies. Rabid cats (n = 245 [5.2%]) and dogs (66 [1.4%]) accounted for > 80% of rabies cases involving domestic animals in 2019. No human rabies cases were reported in 2019. CONCLUSIONS AND CLINICAL RELEVANCE: The overall number of animal rabies cases decreased from 2018 to 2019. Laboratory diagnosis of rabies in animals is critical to ensure that human rabies postexposure prophylaxis is administered judiciously.
Assuntos
Doenças do Gato , Quirópteros , Doenças do Cão , Raiva , Animais , Animais Domésticos , Animais Selvagens , Canadá , Gatos , Doenças do Cão/epidemiologia , Cães , México , New York , North Carolina , Vigilância da População , Raiva/epidemiologia , Raiva/prevenção & controle , Raiva/veterinária , Guaxinins , Texas , Estados Unidos/epidemiologia , VirginiaRESUMO
BACKGROUND: IgE to α-Gal is a cause of mammalian meat allergy and has been linked to tick bites in North America, Australia, and Eurasia. Reports from the developing world indicate that α-Gal sensitization is prevalent but has been little investigated. OBJECTIVE: We sought evidence for the cause(s) of α-Gal sensitization and lack of reported meat allergy among children in less developed settings in Ecuador and Kenya. METHODS: IgE to α-Gal and total IgE were assessed in children from Ecuador (n = 599) and Kenya (n = 254) and compared with children with (n = 42) and without known (n = 63) mammalian meat allergy from the southeastern United States. Information on diet, potential risk factors, and helminth infections was available for children from Ecuador. IgG4 to α-Gal and antibodies to regionally representative parasites were assessed in a subset of children. RESULTS: In Ecuador (32%) and Kenya (54%), α-Gal specific IgE was prevalent, but levels were lower than in children with meat allergy from the United States. Sensitization was associated with rural living, antibody markers of Ascaris exposure, and total IgE, but not active infections with Ascaris or Trichuris species. In Ecuador, 87.5% reported consuming beef at least once per week, including 83.9% of those who had α-Gal specific IgE. Levels of α-Gal specific IgG4 were not high in Ecuador, but were greater than in children from the United States. CONCLUSIONS: These results suggest that in areas of the developing world with endemic parasitism, α-Gal sensitization is (1) common, (2) associated with Ascaris exposure, and (3) distinguished by a low percentage of specific/total IgE compared with individuals with meat allergy in the United States.
Assuntos
Dissacarídeos/imunologia , Hipersensibilidade Alimentar/imunologia , Imunoglobulina E/imunologia , Imunoglobulina G/imunologia , Adolescente , Adulto , Animais , Ascaris/imunologia , Ascaris/isolamento & purificação , Criança , Pré-Escolar , Dieta , Equador/epidemiologia , Fezes/parasitologia , Feminino , Hipersensibilidade Alimentar/sangue , Hipersensibilidade Alimentar/epidemiologia , Hipersensibilidade Alimentar/parasitologia , Humanos , Imunoglobulina E/sangue , Imunoglobulina G/sangue , Quênia/epidemiologia , Masculino , Prevalência , Carne Vermelha , Trichuris/isolamento & purificação , Virginia/epidemiologia , Adulto JovemRESUMO
The effect of temperature on the rate of spotted lanternfly, Lycorma delicatula (White) (Hemiptera: Fulgoridae), egg development was investigated for a population in Pennsylvania. Mean developmental duration (days ± SE) for egg hatch was evaluated at five constant temperatures of 19.9, 24.2, 25.1, 26.7, and 30°C using egg masses laid during the fall of 2018 and collected in 2019 from Berks Co., Pennsylvania. Base temperature thresholds for egg development were estimated using intercept and slope parameters by fitting a linear relationship between average temperature and developmental rate for the Pennsylvania study, two Korean studies, and the combined data sets. The base threshold estimates were then used to calculate seasonal accumulated degree-days (ADD) and construct logistic equations for predicting cumulative proportion of hatch in the spring. The fitted logistic prediction equations were then graphed against the egg hatch observations from field sites in Pennsylvania (2017) and Virginia (2019). When base temperature estimates from the three studies and combined studies were used to calculate ADD, the logistic models predicted similar timing for seasonal egg hatch. Because the slopes and intercepts for these four data sets were not statistically different, a base temperature threshold of 10.4°C derived from the combined model is a good estimate for computing ADD to predict spotted lanternfly spring emergence across a spatio-temporal scale. The combined model was linked with open source weather database and mapping programs to provide spatiotemporal prediction maps to aid pest surveillance and management efforts for spotted lanternfly.
Assuntos
Hemípteros , Animais , Pennsylvania , Estações do Ano , Temperatura , VirginiaRESUMO
BACKGROUND: Hepatocellular carcinoma (HCC) may develop in the absence of cirrhosis in HIV, and determining how often this occurs can provide insights into mechanisms of carcinogenesis. Studies evaluating the prevalence of cirrhosis in the setting of HCC among people living with HIV (PLWH) often rely on noninvasive markers, such as the Fibrosis-4 Index for Hepatic Fibrosis (FIB-4). However, the accuracy of FIB-4 for cirrhosis in the setting of HCC has not been determined among PLWH. METHODS: We conducted a cross-sectional study among PLWH in the Veterans Aging Cohort Study with VA cancer registry-confirmed HCC diagnosed between 1999 and 2015. FIB-4 was calculated using the age, alanine aminotransferase, aspartate aminotransferase, and platelet count obtained closest to, but within 1 year before, HCC diagnosis. Medical records were reviewed within 1 year before HCC diagnosis to determine the cirrhosis status. We evaluated the area under the receiver-operating characteristic curve and performance characteristics of FIB-4 for confirmed cirrhosis. RESULTS: Incident HCC was diagnosed in 302 PLWH. After medical record review, 203 (67.2%, 95% confidence interval: 61.6% to 72.5%) had evidence of cirrhosis. FIB-4 identified patients with cirrhosis with an area under the receiver-operating characteristic curve of 0.67 (95% confidence interval: 0.60 to 0.73). FIB-4 scores >5.0 had a positive predictive value >80% and specificity of >77%, negative predictive value of <41%, and sensitivity of <45%. CONCLUSION: The accuracy of FIB-4 for cirrhosis in the setting of HIV and HCC is modest and may result in misclassification of cirrhosis in this population.
Assuntos
Carcinoma Hepatocelular/complicações , Infecções por HIV/complicações , Cirrose Hepática/diagnóstico , Neoplasias Hepáticas/complicações , Fatores Etários , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Carcinoma Hepatocelular/patologia , Regras de Decisão Clínica , Estudos Transversais , Feminino , Infecções por HIV/patologia , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/etiologia , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Sistema de Registros , Virginia/epidemiologiaRESUMO
Deer keds (Diptera: Hippoboscidae: Lipoptena Nitzsch, 1818 and Neolipoptena Bequaert, 1942) are blood-feeding ectoparasites that primarily attack cervids and occasionally bite humans, while ticks may be found on cervids, but are more generalized in host choice. Recent detection of pathogens such as Anaplasma and Borrelia in deer keds and historical infections of tick-borne diseases provides reason to investigate these ectoparasites as vectors. However, previous methods employed to sample deer keds and ticks vary, making it difficult to standardize and compare ectoparasite burdens on cervids. Therefore, we propose a standardized protocol to collect deer keds and ticks from hunter-harvested deer, which combines previous methods of sampling, including timing of collections, dividing sections of the deer, and materials used in the collection process. We tested a three-section and a five-section sampling scheme in 2018 and 2019, respectively, and found that dividing the deer body into five sections provided more specificity in identifying where deer keds and ticks may be found on deer. Data from 2018 suggested that deer keds and ticks were found on all three sections (head, anterior, posterior), while data from 2019 suggested that more Ixodes scapularis were found on the head and deer keds were found on all body sections (head, dorsal anterior, dorsal posterior, ventral anterior, and ventral posterior). The protocol provides an efficient way to sample deer for deer keds and ticks and allows researchers to compare ectoparasite burdens across geographical regions. Furthermore, this protocol can be used to collect other ectoparasites from deer or other cervids.