RESUMEN
BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can spread rapidly within skilled nursing facilities. After identification of a case of Covid-19 in a skilled nursing facility, we assessed transmission and evaluated the adequacy of symptom-based screening to identify infections in residents. METHODS: We conducted two serial point-prevalence surveys, 1 week apart, in which assenting residents of the facility underwent nasopharyngeal and oropharyngeal testing for SARS-CoV-2, including real-time reverse-transcriptase polymerase chain reaction (rRT-PCR), viral culture, and sequencing. Symptoms that had been present during the preceding 14 days were recorded. Asymptomatic residents who tested positive were reassessed 7 days later. Residents with SARS-CoV-2 infection were categorized as symptomatic with typical symptoms (fever, cough, or shortness of breath), symptomatic with only atypical symptoms, presymptomatic, or asymptomatic. RESULTS: Twenty-three days after the first positive test result in a resident at this skilled nursing facility, 57 of 89 residents (64%) tested positive for SARS-CoV-2. Among 76 residents who participated in point-prevalence surveys, 48 (63%) tested positive. Of these 48 residents, 27 (56%) were asymptomatic at the time of testing; 24 subsequently developed symptoms (median time to onset, 4 days). Samples from these 24 presymptomatic residents had a median rRT-PCR cycle threshold value of 23.1, and viable virus was recovered from 17 residents. As of April 3, of the 57 residents with SARS-CoV-2 infection, 11 had been hospitalized (3 in the intensive care unit) and 15 had died (mortality, 26%). Of the 34 residents whose specimens were sequenced, 27 (79%) had sequences that fit into two clusters with a difference of one nucleotide. CONCLUSIONS: Rapid and widespread transmission of SARS-CoV-2 was demonstrated in this skilled nursing facility. More than half of residents with positive test results were asymptomatic at the time of testing and most likely contributed to transmission. Infection-control strategies focused solely on symptomatic residents were not sufficient to prevent transmission after SARS-CoV-2 introduction into this facility.
Asunto(s)
Enfermedades Asintomáticas , Betacoronavirus/aislamiento & purificación , Infecciones por Coronavirus/transmisión , Transmisión de Enfermedad Infecciosa , Neumonía Viral/transmisión , Instituciones de Cuidados Especializados de Enfermería , Anciano , Anciano de 80 o más Años , Betacoronavirus/genética , COVID-19 , Comorbilidad , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/mortalidad , Tos/etiología , Transmisión de Enfermedad Infecciosa/prevención & control , Disnea/etiología , Femenino , Fiebre/etiología , Genoma Viral , Humanos , Control de Infecciones/métodos , Masculino , Pandemias , Neumonía Viral/complicaciones , Neumonía Viral/diagnóstico , Neumonía Viral/mortalidad , Prevalencia , Reacción en Cadena en Tiempo Real de la Polimerasa , SARS-CoV-2 , Carga Viral , Washingtón/epidemiologíaRESUMEN
Legionella pneumophila is the cause of Legionnaires' disease, a life-threatening pneumonia that occurs after inhalation of aerosolized water containing the bacteria. Legionella growth occurs in stagnant, warm-to-hot water (77°F-113°F) that is inadequately disinfected. Piped hot spring water in Hot Springs National Park, Arkansas, USA, has naturally high temperatures (>135°F) that prevent Legionella growth, and Legionnaires' disease has not previously been associated with the park or other hot springs in the United States. During 2018-2019, Legionnaires' disease occurred in 5 persons after they visited the park; 3 of these persons were potentially exposed in spa facilities that used untreated hot spring water. Environmental testing revealed Legionella bacteria in piped spring water, including 134°F stagnant pipe water. These findings underscore the importance of water management programs to reduce Legionella growth in plumbing through control activities such as maintaining hot water temperatures, reducing stored water age, and ensuring adequate water flow.
Asunto(s)
Manantiales de Aguas Termales , Legionella pneumophila , Enfermedad de los Legionarios , Arkansas , Humanos , Enfermedad de los Legionarios/epidemiología , Enfermedad de los Legionarios/prevención & control , Parques Recreativos , Estados Unidos/epidemiología , Agua , Microbiología del Agua , Abastecimiento de AguaRESUMEN
To assess transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a detention facility experiencing a coronavirus disease outbreak and evaluate testing strategies, we conducted a prospective cohort investigation in a facility in Louisiana, USA. We conducted SARS-CoV-2 testing for detained persons in 6 quarantined dormitories at various time points. Of 143 persons, 53 were positive at the initial test, and an additional 58 persons were positive at later time points (cumulative incidence 78%). In 1 dormitory, all 45 detained persons initially were negative; 18 days later, 40 (89%) were positive. Among persons who were SARS-CoV-2 positive, 47% (52/111) were asymptomatic at the time of specimen collection; 14 had replication-competent virus isolated. Serial SARS-CoV-2 testing might help interrupt transmission through medical isolation and quarantine. Testing in correctional and detention facilities will be most effective when initiated early in an outbreak, inclusive of all exposed persons, and paired with infection prevention and control.
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Prueba de COVID-19/estadística & datos numéricos , COVID-19/epidemiología , Brotes de Enfermedades/estadística & datos numéricos , Transmisión de Enfermedad Infecciosa/estadística & datos numéricos , SARS-CoV-2/aislamiento & purificación , Adulto , COVID-19/diagnóstico , COVID-19/transmisión , Femenino , Humanos , Incidencia , Louisiana/epidemiología , Masculino , Prisiones , Estudios ProspectivosRESUMEN
Objectives. To assess SARS-CoV-2 transmission within a correctional facility and recommend mitigation strategies.Methods. From April 29 to May 15, 2020, we established the point prevalence of COVID-19 among incarcerated persons and staff within a correctional facility in Arkansas. Participants provided respiratory specimens for SARS-CoV-2 testing and completed questionnaires on symptoms and factors associated with transmission.Results. Of 1647 incarcerated persons and 128 staff tested, 30.5% of incarcerated persons (range by housing unit = 0.0%-58.2%) and 2.3% of staff tested positive for SARS-CoV-2. Among those who tested positive and responded to symptom questions (431 incarcerated persons, 3 staff), 81.2% and 33.3% were asymptomatic, respectively. Most incarcerated persons (58.0%) reported wearing cloth face coverings 8 hours or less per day, and 63.3% reported close contact with someone other than their bunkmate.Conclusions. If testing remained limited to symptomatic individuals, fewer cases would have been detected or detection would have been delayed, allowing transmission to continue. Rapid implementation of mass testing and strict enforcement of infection prevention and control measures may be needed to mitigate spread of SARS-CoV-2 in this setting.
Asunto(s)
Prueba de COVID-19 , COVID-19 , Instalaciones Correccionales/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Arkansas/epidemiología , COVID-19/epidemiología , COVID-19/transmisión , Vivienda/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Prisioneros/estadística & datos numéricos , Encuestas y CuestionariosRESUMEN
Preventing transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), in colleges and universities requires mitigation strategies that address on- and off-campus congregate living settings as well as extracurricular activities and other social gatherings (1-4). At the start of the academic year, sorority and fraternity organizations host a series of recruitment activities known as rush week; rush week culminates with bid day, when selections are announced. At university A in Arkansas, sorority rush week (for women) was held during August 17-22, 2020, and consisted of on- and off-campus social gatherings, including an outdoor bid day event on August 22. Fraternity rush week (for men) occurred during August 27-31, with bid day scheduled for September 5. During August 22-September 5, university A-associated COVID-19 cases were reported to the Arkansas Department of Health (ADH). A total of 965 confirmed and probable COVID-19 cases associated with university A were identified, with symptom onset occurring during August 20-September 5, 2020; 31% of the patients with these cases reported involvement in any fraternity or sorority activity. Network analysis identified 54 gatherings among all linkages of cases to places of residence and cases to events, 49 (91%) were linked by participation in fraternity and sorority activities accounting for 42 (72%) links among gatherings. On September 4, university A banned gatherings of ≥10 persons, and fraternity bid day was held virtually. The rapid increase in COVID-19 cases was likely facilitated by on- and off-campus congregate living settings and activities, and health departments should work together with student organizations and university leadership to ensure compliance with mitigation measures.
Asunto(s)
COVID-19/epidemiología , COVID-19/transmisión , Fraternidades Universitarias de Hombres y Mujeres/organización & administración , Infecciones Comunitarias Adquiridas/epidemiología , Adolescente , Adulto , Anciano , Arkansas/epidemiología , COVID-19/prevención & control , Niño , Preescolar , Infecciones Comunitarias Adquiridas/prevención & control , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Universidades , Adulto JovenRESUMEN
Nucleolar stress occurs when ribosome production or function declines. Nucleolar stress in stem cells or progenitor cells often leads to disease states called ribosomopathies. Drosophila offers a robust system to explore how nucleolar stress causes cell cycle arrest, apoptosis, or autophagy depending on the cell type. We provide an overview of nucleolar stress in Drosophila by depleting nucleolar phosphoprotein of 140 kDa (Nopp140), a ribosome biogenesis factor (RBF) in nucleoli and Cajal bodies (CBs). The depletion of Nopp140 in eye imaginal disc cells generates eye deformities reminiscent of craniofacial deformities associated with the Treacher Collins syndrome (TCS), a human ribosomopathy. We show the activation of c-Jun N-terminal Kinase (JNK) in Drosophila larvae homozygous for a Nopp140 gene deletion. JNK is known to induce the expression of the pro-apoptotic Hid protein and autophagy factors Atg1, Atg18.1, and Atg8a; thus, JNK is a central regulator in Drosophila nucleolar stress. Ribosome abundance declines upon Nopp140 loss, but unusual cytoplasmic granules accumulate that resemble Processing (P) bodies based on marker proteins, Decapping Protein 1 (DCP1) and Maternal expression at 31B (Me31B). Wild type brain neuroblasts (NBs) express copious amounts of endogenous coilin, but coilin levels decline upon nucleolar stress in most NB types relative to the Mushroom body (MB) NBs. MB NBs exhibit resilience against nucleolar stress as they maintain normal coilin, Deadpan, and EdU labeling levels.
Asunto(s)
Nucléolo Celular/genética , Cuerpos Enrollados/patología , Proteínas de Drosophila/genética , Drosophila melanogaster/genética , Regulación del Desarrollo de la Expresión Génica , Proteínas de Unión al ARN/genética , Estrés Fisiológico , Animales , Sistemas CRISPR-Cas , Cuerpos Enrollados/genética , Proteínas de Drosophila/antagonistas & inhibidores , Drosophila melanogaster/fisiología , Larva/genética , Larva/crecimiento & desarrollo , Fosfoproteínas , Proteínas de Unión al ARN/antagonistas & inhibidores , Ribosomas/genética , Ribosomas/metabolismoRESUMEN
On March 16, 2020, the day that national social distancing guidelines were released (1), the Arkansas Department of Health (ADH) was notified of two cases of coronavirus disease 2019 (COVID-19) from a rural county of approximately 25,000 persons; these cases were the first identified in this county. The two cases occurred in a husband and wife; the husband is the pastor at a local church (church A). The couple (the index cases) attended church-related events during March 6-8, and developed nonspecific respiratory symptoms and fever on March 10 (wife) and 11 (husband). Before his symptoms had developed, the husband attended a Bible study group on March 11. Including the index cases, 35 confirmed COVID-19 cases occurred among 92 (38%) persons who attended events held at church A during March 6-11; three patients died. The age-specific attack rates among persons aged ≤18 years, 19-64 years, and ≥65 years were 6.3%, 59.4%, and 50.0%, respectively. During contact tracing, at least 26 additional persons with confirmed COVID-19 cases were identified among community members who reported contact with church A attendees and likely were infected by them; one of the additional persons was hospitalized and subsequently died. This outbreak highlights the potential for widespread transmission of SARS-CoV-2, the virus that causes COVID-19, both at group gatherings during church events and within the broader community. These findings underscore the opportunity for faith-based organizations to prevent COVID-19 by following local authorities' guidance and the U.S. Government's Guidelines: Opening Up America Again (2) regarding modification of activities to prevent virus transmission during the COVID-19 pandemic.
Asunto(s)
Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/transmisión , Organizaciones Religiosas , Pandemias , Neumonía Viral/epidemiología , Neumonía Viral/transmisión , Adolescente , Adulto , Anciano , Arkansas/epidemiología , COVID-19 , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto JovenRESUMEN
Transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), by asymptomatic and presymptomatic persons poses important challenges to controlling spread of the disease, particularly in congregate settings such as correctional and detention facilities (1). On March 29, 2020, a staff member in a correctional and detention facility in Louisiana developed symptoms and later had a positive test result for SARS-CoV-2. During April 2-May 7, two additional cases were detected among staff members, and 36 cases were detected among incarcerated and detained persons at the facility; these persons were removed from dormitories and isolated, and the five dormitories that they had resided in before diagnosis were quarantined. On May 7, CDC and the Louisiana Department of Health initiated an investigation to assess the prevalence of SARS-CoV-2 infection among incarcerated and detained persons residing in quarantined dormitories. Goals of this investigation included evaluating COVID-19 symptoms in this setting and assessing the effectiveness of serial testing to identify additional persons with SARS-CoV-2 infection as part of efforts to mitigate transmission. During May 7-21, testing of 98 incarcerated and detained persons residing in the five quarantined dormitories (A-E) identified an additional 71 cases of SARS-CoV-2 infection; 32 (45%) were among persons who reported no symptoms at the time of testing, including three who were presymptomatic. Eighteen cases (25%) were identified in persons who had received negative test results during previous testing rounds. Serial testing of contacts from shared living quarters identified persons with SARS-CoV-2 infection who would not have been detected by symptom screening alone or by testing at a single time point. Prompt identification and isolation of infected persons is important to reduce further transmission in congregate settings such as correctional and detention facilities and the communities to which persons return when released.
Asunto(s)
Técnicas de Laboratorio Clínico/métodos , Infecciones por Coronavirus/prevención & control , Pandemias/prevención & control , Neumonía Viral/prevención & control , Prisioneros/estadística & datos numéricos , Prisiones , Adulto , COVID-19 , Prueba de COVID-19 , Servicios de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/transmisión , Femenino , Humanos , Louisiana/epidemiología , Masculino , Neumonía Viral/epidemiología , Neumonía Viral/transmisiónRESUMEN
By June 2020, Marshallese and Hispanic or Latino (Hispanic) persons in Benton and Washington counties of Arkansas had received a disproportionately high number of diagnoses of coronavirus disease 2019 (COVID-19). Despite representing approximately 19% of these counties' populations (1), Marshallese and Hispanic persons accounted for 64% of COVID-19 cases and 57% of COVID-19-associated deaths. Analyses of surveillance data, focus group discussions, and key-informant interviews were conducted to identify challenges and propose strategies for interrupting transmission of SARS-CoV-2, the virus that causes COVID-19. Challenges included limited native-language health messaging, high household occupancy, high employment rate in the poultry processing industry, mistrust of the medical system, and changing COVID-19 guidance. Reducing the COVID-19 incidence among communities that suffer disproportionately from COVID-19 requires strengthening the coordination of public health, health care, and community stakeholders to provide culturally and linguistically tailored public health education, community-based prevention activities, case management, care navigation, and service linkage.
Asunto(s)
COVID-19/etnología , Brotes de Enfermedades , Hispánicos o Latinos/estadística & datos numéricos , Nativos de Hawái y Otras Islas del Pacífico/estadística & datos numéricos , Adolescente , Adulto , Anciano , Arkansas/epidemiología , Técnicas de Laboratorio Clínico , Femenino , Disparidades en el Estado de Salud , Humanos , Masculino , Persona de Mediana Edad , SARS-CoV-2/aislamiento & purificación , Adulto JovenRESUMEN
In the Seattle, Washington metropolitan area, where the first case of novel coronavirus 2019 disease (COVID-19) in the United States was reported (1), a community-level outbreak is ongoing with evidence of rapid spread and high morbidity and mortality among older adults in long-term care skilled nursing facilities (SNFs) (2,3). However, COVID-19 morbidity among residents of senior independent and assisted living communities, in which residents do not live as closely together as do residents in SNFs and do not require skilled nursing services, has not been described. During March 5-9, 2020, two residents of a senior independent and assisted living community in Seattle (facility 1) were hospitalized with confirmed COVID-19 infection; on March 6, social distancing and other preventive measures were implemented in the community. UW Medicine (the health system linked to the University of Washington), Public Health - Seattle & King County, and CDC conducted an investigation at the facility. On March 10, all residents and staff members at facility 1 were tested for SARS-CoV-2, the virus that causes COVID-19, and asked to complete a questionnaire about their symptoms; all residents were tested again 7 days later. Among 142 residents and staff members tested during the initial phase, three of 80 residents (3.8%) and two of 62 staff members (3.2%) had positive test results. The three residents had no symptoms at the time of testing, although one reported an earlier cough that had resolved. A fourth resident, who had negative test results in the initial phase, had positive test results 7 days later. This resident was asymptomatic on both days. Possible explanations for so few cases of COVID-19 in this residential community compared with those in several Seattle SNFs with high morbidity and mortality include more social distancing among residents and less contact with health care providers. In addition, early implementation of stringent isolation and protective measures after identification of two COVID-19 cases might have been effective in minimizing spread of the virus in this type of setting. When investigating a potential outbreak of COVID-19 in senior independent and assisted living communities, symptom screening is unlikely to be sufficient to identify all persons infected with SARS-CoV-2. Adherence to CDC guidance to prevent COVID-19 transmission in senior independent and assisted living communities (4) could be instrumental in preventing a facility outbreak.
Asunto(s)
Instituciones de Vida Asistida , Betacoronavirus/aislamiento & purificación , Infecciones por Coronavirus/transmisión , Brotes de Enfermedades , Viviendas para Ancianos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Enfermedades Asintomáticas , Centers for Disease Control and Prevention, U.S. , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/prevención & control , Femenino , Humanos , Masculino , Persona de Mediana Edad , Guías de Práctica Clínica como Asunto , SARS-CoV-2 , Estados Unidos , Washingtón/epidemiología , Adulto JovenRESUMEN
Older adults are susceptible to severe coronavirus disease 2019 (COVID-19) outcomes as a consequence of their age and, in some cases, underlying health conditions (1). A COVID-19 outbreak in a long-term care skilled nursing facility (SNF) in King County, Washington that was first identified on February 28, 2020, highlighted the potential for rapid spread among residents of these types of facilities (2). On March 1, a health care provider at a second long-term care skilled nursing facility (facility A) in King County, Washington, had a positive test result for SARS-CoV-2, the novel coronavirus that causes COVID-19, after working while symptomatic on February 26 and 28. By March 6, seven residents of this second facility were symptomatic and had positive test results for SARS-CoV-2. On March 13, CDC performed symptom assessments and SARS-CoV-2 testing for 76 (93%) of the 82 facility A residents to evaluate the utility of symptom screening for identification of COVID-19 in SNF residents. Residents were categorized as asymptomatic or symptomatic at the time of testing, based on the absence or presence of fever, cough, shortness of breath, or other symptoms on the day of testing or during the preceding 14 days. Among 23 (30%) residents with positive test results, 10 (43%) had symptoms on the date of testing, and 13 (57%) were asymptomatic. Seven days after testing, 10 of these 13 previously asymptomatic residents had developed symptoms and were recategorized as presymptomatic at the time of testing. The reverse transcription-polymerase chain reaction (RT-PCR) testing cycle threshold (Ct) values indicated large quantities of viral RNA in asymptomatic, presymptomatic, and symptomatic residents, suggesting the potential for transmission regardless of symptoms. Symptom-based screening in SNFs could fail to identify approximately half of residents with COVID-19. Long-term care facilities should take proactive steps to prevent introduction of SARS-CoV-2 (3). Once a confirmed case is identified in an SNF, all residents should be placed on isolation precautions if possible (3), with considerations for extended use or reuse of personal protective equipment (PPE) as needed (4).
Asunto(s)
Enfermedades Asintomáticas/epidemiología , Betacoronavirus/aislamiento & purificación , Infecciones por Coronavirus/epidemiología , Brotes de Enfermedades , Neumonía Viral/epidemiología , Instituciones de Cuidados Especializados de Enfermería , Anciano , Anciano de 80 o más Años , COVID-19 , Prueba de COVID-19 , Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Femenino , Humanos , Cuidados a Largo Plazo , Masculino , Pandemias , SARS-CoV-2 , Washingtón/epidemiologíaRESUMEN
Undetected infection with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19) contributes to transmission in nursing homes, settings where large outbreaks with high resident mortality have occurred (1,2). Facility-wide testing of residents and health care personnel (HCP) can identify asymptomatic and presymptomatic infections and facilitate infection prevention and control interventions (3-5). Seven state or local health departments conducted initial facility-wide testing of residents and staff members in 288 nursing homes during March 24-June 14, 2020. Two of the seven health departments conducted testing in 195 nursing homes as part of facility-wide testing all nursing homes in their state, which were in low-incidence areas (i.e., the median preceding 14-day cumulative incidence in the surrounding county for each jurisdiction was 19 and 38 cases per 100,000 persons); 125 of the 195 nursing homes had not reported any COVID-19 cases before the testing. Ninety-five of 22,977 (0.4%) persons tested in 29 (23%) of these 125 facilities had positive SARS-CoV-2 test results. The other five health departments targeted facility-wide testing to 93 nursing homes, where 13,443 persons were tested, and 1,619 (12%) had positive SARS-CoV-2 test results. In regression analyses among 88 of these nursing homes with a documented case before facility-wide testing occurred, each additional day between identification of the first case and completion of facility-wide testing was associated with identification of 1.3 additional cases. Among 62 facilities that could differentiate results by resident and HCP status, an estimated 1.3 HCP cases were identified for every three resident cases. Performing facility-wide testing immediately after identification of a case commonly identifies additional unrecognized cases and, therefore, might maximize the benefits of infection prevention and control interventions. In contrast, facility-wide testing in low-incidence areas without a case has a lower proportion of test positivity; strategies are needed to further optimize testing in these settings.
Asunto(s)
Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/prevención & control , Casas de Salud , Pandemias/prevención & control , Neumonía Viral/prevención & control , Anciano , COVID-19 , Prueba de COVID-19 , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/epidemiología , Infecciones por Coronavirus/transmisión , Personal de Salud , Humanos , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Transmisión de Enfermedad Infecciosa de Profesional a Paciente/prevención & control , Neumonía Viral/epidemiología , Neumonía Viral/transmisión , Estados Unidos/epidemiologíaRESUMEN
An estimated 2.1 million U.S. adults are housed within approximately 5,000 correctional and detention facilities on any given day (1). Many facilities face significant challenges in controlling the spread of highly infectious pathogens such as SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19). Such challenges include crowded dormitories, shared lavatories, limited medical and isolation resources, daily entry and exit of staff members and visitors, continual introduction of newly incarcerated or detained persons, and transport of incarcerated or detained persons in multiperson vehicles for court-related, medical, or security reasons (2,3). During April 22-28, 2020, aggregate data on COVID-19 cases were reported to CDC by 37 of 54 state and territorial health department jurisdictions. Thirty-two (86%) jurisdictions reported at least one laboratory-confirmed case from a total of 420 correctional and detention facilities. Among these facilities, COVID-19 was diagnosed in 4,893 incarcerated or detained persons and 2,778 facility staff members, resulting in 88 deaths in incarcerated or detained persons and 15 deaths among staff members. Prompt identification of COVID-19 cases and consistent application of prevention measures, such as symptom screening and quarantine, are critical to protecting incarcerated and detained persons and staff members.
Asunto(s)
Betacoronavirus/aislamiento & purificación , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/epidemiología , Neumonía Viral/diagnóstico , Neumonía Viral/epidemiología , Prisiones , COVID-19 , Infecciones por Coronavirus/mortalidad , Infecciones por Coronavirus/prevención & control , Humanos , Pandemias/prevención & control , Neumonía Viral/mortalidad , Neumonía Viral/prevención & control , Prevalencia , SARS-CoV-2 , Estados Unidos/epidemiologíaRESUMEN
During August-December 2019, 23 persons who received a diagnosis of e-cigarette, or vaping, product use-associated lung injury (EVALI) were reported to the Arkansas Department of Health (ADH); none died. Among Arkansas EVALI patients, most were aged <25 years and white; two-thirds were male. Approximately half of Arkansas EVALI patients were admitted to intensive care units. Among 18 patients who were interviewed, 61% reported using both nicotine and tetrahydrocannabinol in an e-cigarette, or vaping, device during the 90 days preceding illness onset. Clinicians should remain vigilant for EVALI and continue to report cases to ADH.
RESUMEN
We report 5 cases of coccidioidomycosis in animals that were acquired within Washington, USA, and provide further evidence for the environmental endemicity of Coccidioides immitis within the state. Veterinarians should consider coccidioidomycosis in animals with compatible clinical signs that reside in, or have traveled to, south central Washington.
Asunto(s)
Coccidioides/fisiología , Coccidioidomicosis/veterinaria , Enfermedades de los Perros/transmisión , Enfermedades de los Caballos/transmisión , Animales , Coccidioides/aislamiento & purificación , Coccidioidomicosis/diagnóstico , Coccidioidomicosis/microbiología , Coccidioidomicosis/transmisión , Enfermedades de los Perros/diagnóstico , Enfermedades de los Perros/microbiología , Perros , Femenino , Enfermedades de los Caballos/diagnóstico , Enfermedades de los Caballos/microbiología , Caballos , Humanos , Masculino , WashingtónRESUMEN
The nucleolar and Cajal body phosphoprotein of 140 kDa (Nopp140) is considered a ribosome assembly factor, but its precise functions remain unknown. To approach this problem, we deleted the Nopp140 gene in Drosophila using FLP-FRT recombination. Genomic PCR, reverse transcriptase-PCR (RT-PCR), and immunofluorescence microscopy confirmed the loss of Nopp140, its messenger RNA (mRNA), and protein products from all tissues examined. Nopp140-/- larvae arrested in the second instar stage and most died within 8 days. While nucleoli appeared intact in Nopp140-/- cells, the C/D small nucleolar ribonucleoprotein (snoRNP) methyltransferase, fibrillarin, redistributed to the nucleoplasm in variable amounts depending on the cell type; RT-PCRs showed that 2'-O-methylation of ribosomal RNA (rRNA) in Nopp140-/- cells was reduced at select sites within both the 18S and 28S rRNAs. Ultrastructural analysis showed that Nopp140-/- cells were deficient in cytoplasmic ribosomes, but instead contained abnormal electron-dense cytoplasmic granules. Immunoblot analysis showed a loss of RpL34, and metabolic labeling showed a significant drop in protein translation, supporting the loss of functional ribosomes. Northern blots showed that pre-RNA cleavage pathways were generally unaffected by the loss of Nopp140, but that R2 retrotransposons that naturally reside within the 28S region of normally silent heterochromatic Drosophila ribosomal DNA (rDNA) genes were selectively expressed in Nopp140-/- larvae. Unlike copia elements and the related R1 retrotransposon, R2 expression appeared to be preferentially dependent on the loss of Nopp140 and not on environmental stresses. We believe the phenotypes described here define novel intracellular ribosomopathies resulting from the loss of Nopp140.
Asunto(s)
Proteínas de Drosophila/genética , Drosophila/genética , Eliminación de Gen , Proteínas Nucleares/genética , ARN Ribosómico/aislamiento & purificación , Ribosomas/patología , Animales , Núcleo Celular/metabolismo , Cromatina/genética , Cromatina/metabolismo , Proteínas Cromosómicas no Histona/genética , Proteínas Cromosómicas no Histona/metabolismo , Cuerpos Enrollados/genética , Cuerpos Enrollados/metabolismo , Proteínas de Drosophila/metabolismo , Femenino , Genómica , Masculino , Proteínas Nucleares/metabolismo , Fosfoproteínas/genética , Fosfoproteínas/metabolismo , Reacción en Cadena de la Polimerasa , ARN Ribosómico/genética , Proteínas de Unión al ARN , Ribonucleoproteínas Nucleolares Pequeñas/genética , Ribonucleoproteínas Nucleolares Pequeñas/metabolismoRESUMEN
Nucleosomes are the fundamental unit of eukaryotic chromatin. Diverse factors interact with nucleosomes to modulate chromatin architecture and facilitate DNA repair, replication, transcription, and other cellular processes. An important platform for chromatin binding is the H2A-H2B acidic patch. Here, we used AlphaFold-Multimer to screen over 7000 human proteins for nucleosomal acidic patch binding and identify 41 potential acidic patch binders. We determined the cryo-EM structure of one hit, SHPRH, with the nucleosome at 2.8 Å. The structure confirms the predicted acidic patch interaction, reveals that the SHPRH ATPase engages a different nucleosomal DNA location than other SF2-type ATPases, and clarifies the roles of SHPRH's domains in nucleosome recognition. Our results illustrate the use of in silico screening as a high throughput method to identify specific interaction types and expands the set of potential acidic patch binding factors. All the screening data is freely available at: https://predictomes.org/view/acidicpatch.
RESUMEN
OBJECTIVE: Children's voices are being increasingly acknowledged in health care research. The aim of this study was to explore children's and young people's perspectives of being born with a cleft lip and/or palate. DESIGN: The research took a qualitative approach that consisted of two interviews with each child, drawing on child-centered methodologies and techniques. The initial interview focused on children's general life stories, and these often encompassed a discussion about cleft lip and/or palate. The follow-up interview explored specific aspects of the condition and related treatment. PARTICIPANTS: The self-selected sample consisted of 17 children and young people (eight boys, nine girls) with cleft lip and/or palate, aged 8 to 17 years, who received treatment at a dental hospital in the U.K. RESULTS: Children's and young people's accounts identified a number of themes including how they became aware that they had been born with the condition, their views of the treatment pathway, and how it related to who they are. CONCLUSIONS: This study highlights the value of including young people's perspectives in oral health-related research. It has allowed a deeper insight into cleft lip and palate and shows that young people can contribute their views and experiences about services which demonstrate that these could be incorporated into service evaluations.
Asunto(s)
Labio Leporino , Fisura del Paladar , Adolescente , Niño , Labio Leporino/terapia , Fisura del Paladar/terapia , Humanos , Salud BucalRESUMEN
AIM: This qualitative study sought to explore children's perspectives on their participation in the cleft lip and palate care pathway. DESIGN: Eight boys and nine girls (aged 8-17 years), with a range of cleft types and who were patients at a British dental hospital each took part in two child-centred interviews which incorporated participatory activities. An initial interview focused on children's general life stories, and these often encompassed a discussion about cleft lip and/or palate. A follow-up interview explored specific aspects of the condition and its related treatment. RESULTS: Data revealed the varying roles that young people can play in decision-making, which can be described as active or passive. In addition, the dynamic degree of participation was highlighted with patients occupying different roles throughout the care pathway. CONCLUSION: The research provides an insight into treatment decisions, and how young people, their families, and clinicians interact to arrive at these. Findings provide further evidence to support the important contribution young patients can make in their own treatment choices.
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Labio Leporino/psicología , Fisura del Paladar/psicología , Vías Clínicas , Toma de Decisiones , Participación del Paciente/psicología , Adolescente , Niño , Labio Leporino/terapia , Fisura del Paladar/terapia , Femenino , Humanos , Masculino , Participación del Paciente/estadística & datos numéricos , Satisfacción del PacienteRESUMEN
The sensitivity of the BinaxNOW coronavirus disease 2019 (COVID-19) Ag Card test (BinaxNOW) was 51.6% among asymptomatic healthcare employees relative to real-time reverse transcriptase polymerase chain reaction (rRT-PCR). The odds of a positive BinaxNOW test decreased as cycle threshold value increased. BinaxNOW could facilitate rapid detection and isolation of asymptomatically infected persons in some settings while rRT-PCR results are pending.