RESUMEN
Control of spotted-wing Drosophila, Drosophila suzukii, in small fruits emphasizes biological, cultural, and chemical approaches, whereas studies of host plant resistance as a form of genetic control are just getting underway. The identification of resistance patterns among genotypes of host plants whose fruit, leaves, roots, stems, or seeds are specifically targeted by an invasive pest is the first step in the development of an effective genetic control. Therefore, a detached fruit bioassay was developed to screen for D. suzukii oviposition and larval infestation within berries from 25 representative species and hybrids of wild and cultivated Vaccinium. Ten Vaccinium species showed strong resistance; among them, two wild diploids originating from within the fly's native range: V. myrtoides and V. bracteatum. Other resistant species came from the sections Pyxothamnus and Conchophyllum. They included New World V. consanguineum and V. floribundum. Large-cluster blueberry, V. amoenum, and three Floridian genotypes of related rabbiteye blueberry, V. virgatum, were the only hexaploids expressing strong resistance against D. suzukii. Most screened blueberry genotypes from managed lowbush and cultivated highbush types were susceptible to the flies' attacks (i.e., oviposition). Tetraploid blueberries tended to host the most eggs, whereas diploids and hexaploids harbored 50%-60% fewer eggs, on average. D. suzukii cannot lay eggs or complete development in the smallest, sweetest, and firmest diploid fruits. Likewise, certain genotypes of large-fruited tetraploid and hexaploid blueberry strongly curbed D. suzukii egg-laying and larval growth, indicating the possibility of heritable resistance operating against this invasive fly species.
Asunto(s)
Arándanos Azules (Planta) , Vaccinium , Femenino , Animales , Drosophila/genética , Tetraploidía , Larva , Frutas , Especies Introducidas , Control de InsectosRESUMEN
BACKGROUND: As the world faced the pandemic caused by the novel coronavirus disease 2019 (COVID-19), medical professionals, technologists, community leaders, and policy makers sought to understand how best to leverage data for public health surveillance and community education. With this complex public health problem, North Carolinians relied on data from state, federal, and global health organizations to increase their understanding of the pandemic and guide decision-making. OBJECTIVE: We aimed to describe the role that stakeholders involved in COVID-19-related data played in managing the pandemic in North Carolina. The study investigated the processes used by organizations throughout the state in using, collecting, and reporting COVID-19 data. METHODS: We used an exploratory qualitative study design to investigate North Carolina's COVID-19 data collection efforts. To better understand these processes, key informant interviews were conducted with employees from organizations that collected COVID-19 data across the state. We developed an interview guide, and open-ended semistructured interviews were conducted during the period from June through November 2020. Interviews lasted between 30 and 45 minutes and were conducted by data scientists by videoconference. Data were subsequently analyzed using qualitative data analysis software. RESULTS: Results indicated that electronic health records were primary sources of COVID-19 data. Often, data were also used to create dashboards to inform the public or other health professionals, to aid in decision-making, or for reporting purposes. Cross-sector collaboration was cited as a major success. Consistency among metrics and data definitions, data collection processes, and contact tracing were cited as challenges. CONCLUSIONS: Findings suggest that, during future outbreaks, organizations across regions could benefit from data centralization and data governance. Data should be publicly accessible and in a user-friendly format. Additionally, established cross-sector collaboration networks are demonstrably beneficial for public health professionals across the state as these established relationships facilitate a rapid response to evolving public health challenges.
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COVID-19/epidemiología , Análisis de Datos , Recolección de Datos , Pandemias/prevención & control , Participación de los Interesados/psicología , Femenino , Educación en Salud , Humanos , Masculino , North Carolina/epidemiología , Vigilancia en Salud Pública , Investigación CualitativaRESUMEN
Purpose: About 30,000 U.S. women die each year from gynecologic cancer, which disproportionately affects underserved and minority populations. This project aimed at increasing and assessing awareness of risk, symptoms, and recommended screenings and prevention activities in underserved women, through unique collaboration between the Centers for Disease Control and Prevention's (CDC) Inside Knowledge (IK) campaign, which was designed to educate women about gynecologic cancer, and the CDC's national network of organizations to reduce cancer-related disparities. Materials and Methods: CDC's national network and the IK campaign partnered to deliver tailored educational sessions about gynecologic cancer to three populations of women served by the participant organizations. Participant organizations included the National Behavioral Health Network (NBHN), Nuestras Voces (NV), and SelfMade. Pre- and post-session questionnaires were administered to assess knowledge changes. Results: Knowledge changes for risk factors, screening, and HPV vaccination varied by network organization, but all sessions increased correct identification of some symptoms. Baseline knowledge also varied among organization participants. Conclusions: Sessions were effective in increasing awareness of gynecologic cancer among underserved women; however, organizational information uptake differed. Additional resources containing specific interventions appropriate to particular underserved populations may be beneficial in increasing healthy behaviors, leading to a reduction in gynecologic cancer disparities.
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Neoplasias de los Genitales Femeninos/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Promoción de la Salud , Poblaciones Vulnerables , Adulto , Centers for Disease Control and Prevention, U.S. , Femenino , Disparidades en Atención de Salud , Humanos , Tamizaje Masivo , Persona de Mediana Edad , Factores Socioeconómicos , Encuestas y Cuestionarios , Estados UnidosRESUMEN
This study offers the first systematic analysis of the impact of press-state relations, or media systems, on the HIV/AIDS news agenda in African news coverage. The premise is that media systems play a determining role in the degree to which journalists can independently advocate for social change when covering HIV/AIDS. Drawing on comparative research, four sub-Saharan countries were categorized into two media systems: Contained Democratic (South Africa, Nigeria) and Repressive Autocratic (Zimbabwe, Kenya). A sample of HIV/AIDS stories (n = 393) published from 2002-2007 in each country's leading Anglophone newspaper was content analyzed. Across all coverage, the topic of social costs was framed more for the responsibility borne by nongovernmental agents than governmental agents. In Contained Democratic media systems, however, story emphasis shifted toward government agents taking responsibility for addressing the social costs of HIV/AIDS. Prevention campaigns were framed more as progress than decline across all newspapers; however, campaigns were reported as being more efficacious in Contained Democratic systems than in Repressive Autocratic systems. No impact of media system on framing of medical developments was found. Results show the value of comparative analysis in understanding the agenda-setting process: with greater emphasis on positive efficacy and government initiative, the news agenda in Contained Democratic media systems can facilitate stronger positive societal-level responses than the news agenda in Repressive Autocratic media systems.
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Actitud Frente a la Salud , Infecciones por VIH , Periodismo Médico , Periódicos como Asunto , África del Sur del Sahara , HumanosRESUMEN
This paper provides an update and an overview of factor V Leiden, an inherited condition, which predisposes affected individuals to thrombosis. Factor V Leiden occurs due to a single point mutation on chromosome one. Tests for factor V Leiden include screening for activated protein C (APC) resistance, and if positive, testing for the Factor V Leiden mutation.