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1.
Emerg Infect Dis ; 29(11): 2325-2334, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37877591

RESUMO

Identifying persons who have newly acquired HIV infections is critical for characterizing the HIV epidemic direction. We analyzed pooled data from nationally representative Population-Based HIV Impact Assessment surveys conducted across 14 countries in Africa for recent infection risk factors. We included adults 15-49 years of age who had sex during the previous year and used a recent infection testing algorithm to distinguish recent from long-term infections. We collected risk factor information via participant interviews and assessed correlates of recent infection using multinomial logistic regression, incorporating each survey's complex sampling design. Compared with HIV-negative persons, persons with higher odds of recent HIV infection were women, were divorced/separated/widowed, had multiple recent sex partners, had a recent HIV-positive sex partner or one with unknown status, and lived in communities with higher HIV viremia prevalence. Prevention programs focusing on persons at higher risk for HIV and their sexual partners will contribute to reducing HIV incidence.


Assuntos
Infecções por HIV , Humanos , Adulto , Feminino , Masculino , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , África/epidemiologia , Fatores de Risco , Parceiros Sexuais , Coleta de Dados
2.
N Engl J Med ; 382(21): 2005-2011, 2020 05 21.
Artigo em Inglês | MEDLINE | ID: mdl-32220208

RESUMO

BACKGROUND: Long-term care facilities are high-risk settings for severe outcomes from outbreaks of Covid-19, owing to both the advanced age and frequent chronic underlying health conditions of the residents and the movement of health care personnel among facilities in a region. METHODS: After identification on February 28, 2020, of a confirmed case of Covid-19 in a skilled nursing facility in King County, Washington, Public Health-Seattle and King County, aided by the Centers for Disease Control and Prevention, launched a case investigation, contact tracing, quarantine of exposed persons, isolation of confirmed and suspected cases, and on-site enhancement of infection prevention and control. RESULTS: As of March 18, a total of 167 confirmed cases of Covid-19 affecting 101 residents, 50 health care personnel, and 16 visitors were found to be epidemiologically linked to the facility. Most cases among residents included respiratory illness consistent with Covid-19; however, in 7 residents no symptoms were documented. Hospitalization rates for facility residents, visitors, and staff were 54.5%, 50.0%, and 6.0%, respectively. The case fatality rate for residents was 33.7% (34 of 101). As of March 18, a total of 30 long-term care facilities with at least one confirmed case of Covid-19 had been identified in King County. CONCLUSIONS: In the context of rapidly escalating Covid-19 outbreaks, proactive steps by long-term care facilities to identify and exclude potentially infected staff and visitors, actively monitor for potentially infected patients, and implement appropriate infection prevention and control measures are needed to prevent the introduction of Covid-19.


Assuntos
Betacoronavirus , Infecções por Coronavirus/epidemiologia , Transmissão de Doença Infecciosa , Controle de Infecções/métodos , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Instituições de Cuidados Especializados de Enfermagem , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19 , Teste para COVID-19 , Técnicas de Laboratório Clínico , Busca de Comunicante , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/prevenção & controle , Infecções por Coronavirus/transmissão , Surtos de Doenças , Transmissão de Doença Infecciosa/prevenção & controle , Feminino , Pessoal de Saúde , Humanos , Assistência de Longa Duração , Masculino , Pessoa de Meia-Idade , Pneumonia Viral/mortalidade , Pneumonia Viral/prevenção & controle , Pneumonia Viral/transmissão , SARS-CoV-2 , Washington/epidemiologia
3.
MMWR Morb Mortal Wkly Rep ; 72(21): 568-573, 2023 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-37227964

RESUMO

More than 30,000 monkeypox (mpox) cases have been diagnosed in the United States since May 2022, primarily among gay, bisexual, and other men who have sex with men (MSM) (1,2). In recent months, diagnoses have declined to one case per day on average. However, mpox vaccination coverage varies regionally, suggesting variable potential risk for mpox outbreak recurrence (3). CDC simulated dynamic network models representing sexual behavior among MSM to estimate the risk for and potential size of recurrent mpox outbreaks at the jurisdiction level for 2023 and to evaluate the benefits of vaccination for preparedness against mpox reintroduction. The risk for outbreak recurrence after mpox reintroduction is linearly (inversely) related to the proportion of MSM who have some form of protective immunity: the higher the population prevalence of immunity (from vaccination or natural infection), the lower the likelihood of recurrence in that jurisdiction across all immunity levels modeled. In contrast, the size of a potential recurrent outbreak might have thresholds: very small recurrences are predicted for jurisdictions with mpox immunity of 50%-100%; exponentially increasing sizes of recurrences are predicted for jurisdictions with 25%-50% immunity; and linearly increasing sizes of recurrences are predicted for jurisdictions with <25% immunity. Among the 50 jurisdictions examined, 15 are predicted to be at minimal risk for recurrence because of their high levels of population immunity. This analysis underscores the ongoing need for accessible and sustained mpox vaccination to decrease the risk for and potential size of future mpox recurrences.


Assuntos
Surtos de Doenças , Mpox , Minorias Sexuais e de Gênero , Humanos , Masculino , Surtos de Doenças/prevenção & controle , Homossexualidade Masculina , Mpox/epidemiologia , Recidiva , Comportamento Sexual , Estados Unidos/epidemiologia
4.
MMWR Morb Mortal Wkly Rep ; 72(23): 627-632, 2023 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-37289660

RESUMO

More than 30,000 monkeypox (mpox) cases were reported in the United States during the 2022 multinational outbreak; cases disproportionately affected gay, bisexual, and other men who have sex with men (MSM). Substantial racial and ethnic disparities in incidence were also reported (1). The national mpox vaccination strategy* emphasizes that efforts to administer the JYNNEOS mpox vaccine should be focused among the populations at elevated risk for exposure to mpox (2). During May 2022-April 2023, a total of 748,329 first JYNNEOS vaccine doses (of the two recommended) were administered in the United States.† During the initial months of the outbreak, lower vaccination coverage rates among racial and ethnic minority groups were reported (1,3); however, after implementation of initiatives developed to expand access to mpox vaccination,§ coverage among racial and ethnic minority groups increased (1,4). A shortfall analysis was conducted to examine whether the increase in mpox vaccination coverage was equitable across all racial and ethnic groups (5). Shortfall was defined as the percentage of the vaccine-eligible population that did not receive the vaccine (i.e., 100% minus the percentage of the eligible population that did receive a first dose). Monthly mpox vaccination shortfalls were calculated and were stratified by race and ethnicity; monthly percent reductions in shortfall were also calculated compared with the preceding month's shortfall (6). The mpox vaccination shortfall decreased among all racial and ethnic groups during May 2022-April 2023; however, based on analysis of vaccine administration data with race and ethnicity reported, 66.0% of vaccine-eligible persons remained unvaccinated at the end of this period. The shortfall was largest among non-Hispanic Black or African American (Black) (77.9%) and non-Hispanic American Indian or Alaska Native (AI/AN) (74.5%) persons, followed by non-Hispanic White (White) (66.6%) and Hispanic or Latino (Hispanic) (63.0%) persons, and was lowest among non-Hispanic Asian (Asian) (38.5%) and non-Hispanic Native Hawaiian and other Pacific Islander (NH/OPI) (43.7%) persons. The largest percentage decreases in the shortfall were achieved during August (17.7%) and September (8.5%). However, during these months, smaller percentage decreases were achieved among Black persons (12.2% and 4.9%, respectively), highlighting the need for a focus on equity for the entirety of a public health response. Achieving equitable progress in JYNNEOS vaccination coverage will require substantial decreases in shortfalls among Black and AI/AN persons.


Assuntos
Mpox , Minorias Sexuais e de Gênero , Vacina Antivariólica , Masculino , Humanos , Estados Unidos/epidemiologia , Etnicidade , Homossexualidade Masculina , Cobertura Vacinal , Grupos Minoritários , Vacinação
5.
MMWR Morb Mortal Wkly Rep ; 72(13): 342-347, 2023 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-36995962

RESUMO

From May 2022 through the end of January 2023, approximately 30,000 cases of monkeypox (mpox) have been reported in the United States and >86,000 cases reported internationally.* JYNNEOS (Modified Vaccinia Ankara vaccine, Bavarian Nordic) is recommended for subcutaneous administration to persons at increased risk for mpox (1,2) and has been demonstrated to provide protection against infection (3-5). To increase the total number of vaccine doses available, the Food and Drug Administration (FDA) issued an Emergency Use Authorization (EUA) on August 9, 2022, recommending administration of the vaccine intradermally (0.1 mL per dose) for persons aged ≥18 years who are recommended to receive it (6); intradermal administration can generate an equivalent immune response to that achieved through subcutaneous injection using approximately one fifth the subcutaneous dose (7). CDC analyzed JYNNEOS vaccine administration data submitted to CDC from jurisdictional immunization information systems (IIS)† to assess the impact of the EUA and to estimate vaccination coverage among the population at risk for mpox. During May 22, 2022-January 31, 2023, a total of 1,189,651 JYNNEOS doses (734,510 first doses and 452,884 second doses)§ were administered. Through the week of August 20, 2022, the predominant route of administration was subcutaneous, after which intradermal administration became predominant, in accordance with FDA guidance. As of January 31, 2023, 1-dose and 2-dose (full vaccination) coverage among persons at risk for mpox is estimated to have reached 36.7% and 22.7%, respectively. Despite a steady decline in mpox cases from a 7-day daily average of more than 400 cases on August 1, 2022, to five cases on January 31, 2023, vaccination for persons at risk for mpox continues to be recommended (1). Targeted outreach and continued access to and availability of mpox vaccines to persons at risk are important to help prevent and minimize the impact of a resurgence of mpox.


Assuntos
Mpox , Vacina Antivariólica , Humanos , Estados Unidos , Adolescente , Adulto , Cobertura Vacinal , Vacinação , Vacinas Atenuadas
6.
Emerg Infect Dis ; 28(3): 717-720, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35202532

RESUMO

We assessed the relationship between antigen and reverse transcription PCR (RT-PCR) test positivity and successful virus isolation. We found that antigen test results were more predictive of virus recovery than RT-PCR results. However, virus was isolated from some antigen-negative and RT-PCR‒positive paired specimens, providing support for the Centers for Disease Control and Prevention antigen testing algorithm.


Assuntos
COVID-19 , Transcrição Reversa , Antígenos Virais , COVID-19/diagnóstico , Humanos , Reação em Cadeia da Polimerase , SARS-CoV-2/genética , Sensibilidade e Especificidade
7.
MMWR Morb Mortal Wkly Rep ; 71(45): 1449-1456, 2022 Nov 11.
Artigo em Inglês | MEDLINE | ID: mdl-36355615

RESUMO

On May 17, 2022, the Massachusetts Department of Health announced the first suspected case of monkeypox associated with the global outbreak in a U.S. resident. On May 23, 2022, CDC launched an emergency response (1,2). CDC's emergency response focused on surveillance, laboratory testing, medical countermeasures, and education. Medical countermeasures included rollout of a national JYNNEOS vaccination strategy, Food and Drug Administration (FDA) issuance of an emergency use authorization to allow for intradermal administration of JYNNEOS, and use of tecovirimat for patients with, or at risk for, severe monkeypox. During May 17-October 6, 2022, a total of 26,384 probable and confirmed* U.S. monkeypox cases were reported to CDC. Daily case counts peaked during mid-to-late August. Among 25,001 of 25,569 (98%) cases in adults with information on gender identity,† 23,683 (95%) occurred in cisgender men. Among 13,997 cisgender men with information on recent sexual or close intimate contact,§ 10,440 (75%) reported male-to-male sexual contact (MMSC) ≤21 days preceding symptom onset. Among 21,211 (80%) cases in persons with information on race and ethnicity,¶ 6,879 (32%), 6,628 (31%), and 6,330 (30%) occurred in non-Hispanic Black or African American (Black), Hispanic or Latino (Hispanic), and non-Hispanic White (White) persons, respectively. Among 5,017 (20%) cases in adults with information on HIV infection status, 2,876 (57%) had HIV infection. Prevention efforts, including vaccination, should be prioritized among persons at highest risk within groups most affected by the monkeypox outbreak, including gay, bisexual, and other men who have sex with men (MSM); transgender, nonbinary, and gender-diverse persons; racial and ethnic minority groups; and persons who are immunocompromised, including persons with advanced HIV infection or newly diagnosed HIV infection.


Assuntos
Infecções por HIV , Mpox , Minorias Sexuais e de Gênero , Adulto , Estados Unidos/epidemiologia , Humanos , Masculino , Feminino , Homossexualidade Masculina , Etnicidade , Infecções por HIV/prevenção & controle , Mpox/epidemiologia , Grupos Minoritários , Identidade de Gênero , Causas de Morte , Surtos de Doenças
8.
BMC Infect Dis ; 22(1): 314, 2022 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-35361140

RESUMO

BACKGROUND: To improve understanding of the antibody response to SARS-CoV-2 infection, we examined seroprevalence, incidence of infection, and seroconversion among a cohort of young adults living on university campuses during the fall of 2020. METHODS: At the beginning (semester start) and end (semester end) of an 11-week period, serum collected from 107 students was tested using the qualitative Abbott Architect SARS-CoV-2 IgG and AdviseDx SARS-CoV-2 IgG II assays. Results were matched to interim weekly surveillance viral testing and symptom data. RESULTS: With the SARS-CoV-2 IgG assay, 15 (14.0%) students were seropositive at semester start; 29 (27.1%) students were seropositive at semester end; 10 (9.3%) were seropositive at both times. With the AdviseDx SARS-CoV-2 IgG II assay, 17 (16.3%) students were seropositive at semester start, 37 (35.6%) were seropositive at semester end, and 16 (15.3%) were seropositive at both times. Overall, 23 students (21.5%) had positive viral tests during the semester. Infection was identified by serial testing in a large majority of individuals who seroconverted using both assays. Those seropositive at semester end more frequently reported symptomatic infections (56.5%) than asymptomatic infections (30.4%). CONCLUSION: Differences between antibody targets were observed, with more declines in antibody index values below the threshold of positivity with the anti-nucleocapsid assay compared to the anti-spike assay. Serology testing, combined with serial viral testing, can detect seroconversions, and help understand the potential correlates of protection provided by antibodies to SARS-CoV-2.


Assuntos
COVID-19 , SARS-CoV-2 , Anticorpos Antivirais , COVID-19/diagnóstico , COVID-19/epidemiologia , Estudos de Coortes , Ensaio de Imunoadsorção Enzimática , Humanos , Soroconversão , Estudos Soroepidemiológicos , Estudantes , Universidades
9.
Clin Infect Dis ; 73(Suppl 1): S42-S44, 2021 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-33912911

RESUMO

Large public-health training events may result in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission. Universal SARS-CoV-2 testing during trainings for the Uganda Population-based HIV Impact Assessment identified 28 of 475 (5.9%) individuals with coronavirus disease 2019 (COVID-19) among attendees; most (89.3%) were asymptomatic. Until COVID-19 vaccine is readily available for staff and participants, effective COVID-19 mitigation measures, along with SARS-CoV-2 testing, are recommended for in-person trainings, particularly when trainees will have subsequent contact with survey participants.


Assuntos
COVID-19 , Teste para COVID-19 , Vacinas contra COVID-19 , Humanos , SARS-CoV-2 , Uganda
11.
Clin Infect Dis ; 73(6): e1348-e1355, 2021 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-33846714

RESUMO

BACKGROUND: Real-time reverse transcription polymerase chain reaction (rRT-PCR) and antigen tests are important diagnostics for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Sensitivity of antigen tests has been shown to be lower than that of rRT-PCR; however, data to evaluate epidemiologic characteristics that affect test performance are limited. METHODS: Paired mid-turbinate nasal swabs were collected from university students and staff and tested for SARS-CoV-2 using both Quidel Sofia SARS Antigen Fluorescent Immunoassay (FIA) and rRT-PCR assay. Specimens positive by either rRT-PCR or antigen FIA were placed in viral culture and tested for subgenomic RNA (sgRNA). Logistic regression models were used to evaluate characteristics associated with antigen results, rRT-PCR cycle threshold (Ct) values, sgRNA, and viral culture. RESULTS: Antigen FIA sensitivity was 78.9% and 43.8% among symptomatic and asymptomatic participants, respectively. Among rRT-PCR positive participants, negative antigen results were more likely among asymptomatic participants (odds ratio [OR] 4.6, 95% confidence interval [CI]: 1.3-15.4) and less likely among participants reporting nasal congestion (OR 0.1, 95% CI: .03-.8). rRT-PCR-positive specimens with higher Ct values (OR 0.5, 95% CI: .4-.8) were less likely, and specimens positive for sgRNA (OR 10.2, 95% CI: 1.6-65.0) more likely, to yield positive virus isolation. Antigen testing was >90% positive in specimens with Ct values < 29. Positive predictive value of antigen test for positive viral culture (57.7%) was similar to that of rRT-PCR (59.3%). CONCLUSIONS: SARS-CoV-2 antigen test advantages include low cost, wide availability and rapid turnaround time, making them important screening tests. The performance of antigen tests may vary with patient characteristics, so performance characteristics should be accounted for when designing testing strategies and interpreting results.


Assuntos
COVID-19 , SARS-CoV-2 , Antígenos Virais , Humanos , RNA , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Transcrição Reversa , Sensibilidade e Especificidade , Universidades
12.
Emerg Infect Dis ; 27(11): 2776-2785, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34586058

RESUMO

University settings have demonstrated potential for coronavirus disease (COVID-19) outbreaks; they combine congregate living, substantial social activity, and a young population predisposed to mild illness. Using genomic and epidemiologic data, we describe a COVID-19 outbreak at the University of Wisconsin-Madison, Madison, Wisconsin, USA. During August-October 2020, a total of 3,485 students, including 856/6,162 students living in dormitories, tested positive. Case counts began rising during move-in week, August 25-31, 2020, then rose rapidly during September 1-11, 2020. The university initiated multiple prevention efforts, including quarantining 2 dormitories; a subsequent decline in cases was observed. Genomic surveillance of cases from Dane County, in which the university is located, did not find evidence of transmission from a large cluster of cases in the 2 quarantined dorms during the outbreak. Coordinated implementation of prevention measures can reduce COVID-19 spread in university settings and may limit spillover to the surrounding community.


Assuntos
COVID-19 , Universidades , Surtos de Doenças , Humanos , SARS-CoV-2 , Wisconsin/epidemiologia
13.
MMWR Morb Mortal Wkly Rep ; 70(25): 916-921, 2021 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-34166336

RESUMO

Workplace activities involving close contact with coworkers and customers can lead to transmission of SARS-CoV-2, the virus that causes COVID-19 (1,2). Information on the approach to and effectiveness of COVID-19 workplace investigations is limited. In May 2020, Public Health - Seattle & King County (PHSKC), King County, Washington established a COVID-19 workplace surveillance and response system to enhance COVID-19 contact tracing and identify outbreaks in workplaces. During June 15-November 15, 2020, a total of 2,881 workplaces in King County reported at least one case of COVID-19. Among 1,305 (45.3%) investigated workplaces,* 524 (40.3%) met the definition of a workplace outbreak.† Among 306 (58.4%) workplaces with complete data,§ an average of 4.4 employee COVID-19 cases¶ (median = three; range = 1-65) were identified per outbreak, with an average attack rate among employees of 17.5%. PHSKC and the Washington State Department of Health optimized resources by establishing a classification scheme to prioritize workplace investigations as high, medium, or low priority based on workplace features observed to be associated with increased COVID-19 spread and workforce features associated with severe disease outcomes. High-priority investigations were significantly more likely than medium- and low-priority investigations to have two or more cases among employees (p<0.001), two or more cases not previously linked to the workplace (p<0.001), or two or more exposed workplace contacts not previously identified during case interviews (p = 0.002). Prioritization of workplace investigations allowed for the allocation of limited resources to effectively conduct workplace investigations to limit the potential workplace spread of COVID-19. Workplace investigations can also serve as an opportunity to provide guidance on preventing workplace exposures to SARS-CoV-2, facilitate access to vaccines, and strengthen collaborations between public health and businesses.


Assuntos
COVID-19/epidemiologia , Saúde Ocupacional , Vigilância em Saúde Pública , COVID-19/transmissão , Busca de Comunicante , Humanos , Relações Interprofissionais , Washington/epidemiologia , Local de Trabalho
14.
MMWR Morb Mortal Wkly Rep ; 70(12): 442-448, 2021 03 26.
Artigo em Inglês | MEDLINE | ID: mdl-33764967

RESUMO

School closures affected more than 55 million students across the United States when implemented as a strategy to prevent the transmission of SARS-CoV-2, the virus that causes COVID-19 (1). Reopening schools requires balancing the risks for SARS-CoV-2 infection to students and staff members against the benefits of in-person learning (2). During December 3, 2020-January 31, 2021, CDC investigated SARS-CoV-2 transmission in 20 elementary schools (kindergarten through grade 6) that had reopened in Salt Lake County, Utah. The 7-day cumulative number of new COVID-19 cases in Salt Lake County during this time ranged from 290 to 670 cases per 100,000 persons.† Susceptible§ school contacts¶ (students and staff members exposed to SARS-CoV-2 in school) of 51 index patients** (40 students and 11 staff members) were offered SARS-CoV-2 reverse transcription-polymerase chain reaction (RT-PCR) testing. Among 1,041 susceptible school contacts, 735 (70.6%) were tested, and five of 12 cases identified were classified as school-associated; the secondary attack rate among tested susceptible school contacts was 0.7%. Mask use among students was high (86%), and the median distance between students' seats in classrooms was 3 ft. Despite high community incidence and an inability to maintain ≥6 ft of distance between students at all times, SARS-CoV-2 transmission was low in these elementary schools. The results from this investigation add to the increasing evidence that in-person learning can be achieved with minimal SARS-CoV-2 transmission risk when multiple measures to prevent transmission are implemented (3,4).


Assuntos
COVID-19/epidemiologia , COVID-19/transmissão , SARS-CoV-2/isolamento & purificação , Instituições Acadêmicas/estatística & dados numéricos , Adulto , COVID-19/prevenção & controle , Teste de Ácido Nucleico para COVID-19 , Criança , Pré-Escolar , Busca de Comunicante , Feminino , Humanos , Masculino , Máscaras/estatística & dados numéricos , Pessoa de Meia-Idade , Distanciamento Físico , Instituições Acadêmicas/organização & administração , Utah/epidemiologia
15.
MMWR Morb Mortal Wkly Rep ; 69(5152): 1642-1647, 2021 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-33382679

RESUMO

Antigen-based tests for SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), are inexpensive and can return results within 15 minutes (1). Antigen tests have received Food and Drug Administration (FDA) Emergency Use Authorization (EUA) for use in asymptomatic and symptomatic persons within the first 5-12 days after symptom onset (2). These tests have been used at U.S. colleges and universities and other congregate settings (e.g., nursing homes and correctional and detention facilities), where serial testing of asymptomatic persons might facilitate early case identification (3-5). However, test performance data from symptomatic and asymptomatic persons are limited. This investigation evaluated performance of the Sofia SARS Antigen Fluorescent Immunoassay (FIA) (Quidel Corporation) compared with real-time reverse transcription-polymerase chain reaction (RT-PCR) for SARS-CoV-2 detection among asymptomatic and symptomatic persons at two universities in Wisconsin. During September 28-October 9, a total of 1,098 paired nasal swabs were tested using the Sofia SARS Antigen FIA and real-time RT-PCR. Virus culture was attempted on all antigen-positive or real-time RT-PCR-positive specimens. Among 871 (79%) paired swabs from asymptomatic participants, the antigen test sensitivity was 41.2%, specificity was 98.4%, and in this population the estimated positive predictive value (PPV) was 33.3%, and negative predictive value (NPV) was 98.8%. Antigen test performance was improved among 227 (21%) paired swabs from participants who reported one or more symptoms at specimen collection (sensitivity = 80.0%; specificity = 98.9%; PPV = 94.1%; NPV = 95.9%). Virus was isolated from 34 (46.6%) of 73 antigen-positive or real-time RT-PCR-positive nasal swab specimens, including two of 18 that were antigen-negative and real-time RT-PCR-positive (false-negatives). The advantages of antigen tests such as low cost and rapid turnaround might allow for rapid identification of infectious persons. However, these advantages need to be balanced against lower sensitivity and lower PPV, especially among asymptomatic persons. Confirmatory testing with an FDA-authorized nucleic acid amplification test (NAAT), such as RT-PCR, should be considered after negative antigen test results in symptomatic persons, and after positive antigen test results in asymptomatic persons (1).


Assuntos
Antígenos Virais/análise , Teste para COVID-19/métodos , COVID-19/diagnóstico , SARS-CoV-2/imunologia , Serviços de Saúde para Estudantes , Adolescente , Adulto , Doenças Assintomáticas , COVID-19/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Universidades , Wisconsin/epidemiologia , Adulto Jovem
16.
Soc Psychiatry Psychiatr Epidemiol ; 56(10): 1791-1799, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33388799

RESUMO

PURPOSE: The purpose of this study was to examine whether the choice of means by persons who die by suicide is associated with a prior psychiatric diagnosis. METHODS: In this cross-sectional study, we analyzed suicide surveillance data from 18 states reporting to the National Violent Death Reporting System (NVDRS) between 2003 and 2014. NVDRS compiled data from multiple sources (e.g., coroner's reports, police reports, death certificates) on every violent death within reporting jurisdictions, including information on indicated psychiatric disorders and suicide means. We assessed whether the selected suicide means were associated with diagnoses using multinomial logistic regression. RESULTS: Adjusted models suggested that, compared to decedents using firearms, those using poisoning were more likely to have each psychiatric disorder examined, including bipolar disorder (aOR: 2.17 [95% CI 2.03-2.32]), schizophrenia (aOR: 1.81 [1.61-2.04]), depression (aOR: 1.64 [1.58-1.70]), anxiety disorder (aOR: 1.46 [1.35-1.57]), and PTSD (aOR: 1.41 [1.22-1.64]). A far greater proportion of individuals who died from less common means (other than firearms, suffocation, or poisoning) had schizophrenia (aOR: 4.52 [4.00-5.11]). CONCLUSIONS: Many existing and proposed means restriction interventions have focused on firearms. Additional focus on access to potential agents of poisoning (e.g., the type and quantity of medication administered to patients) among individuals with psychiatric diagnoses may be warranted.


Assuntos
Transtornos Mentais , Suicídio , Causas de Morte , Estudos Transversais , Humanos , Transtornos Mentais/epidemiologia , Estados Unidos/epidemiologia , Violência
17.
MMWR Morb Mortal Wkly Rep ; 69(41): 1497-1502, 2020 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-33056953

RESUMO

On May 13, 2020, the Wisconsin Supreme Court declared the state's Safer at Home Emergency Order (https://evers.wi.gov/Documents/COVID19/EMO28-SaferAtHome.pdf) "unlawful, invalid, and unenforceable,"* thereby increasing opportunities for social and business interactions. By mid-June, Winnebago County,† Wisconsin experienced an increase in the number of infections with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), with the largest increase among persons aged 18-23 years (young adults) (1). This age group§ accounts for 12.5% of the population in the county. To identify factors that influence exposure to COVID-19 among young adults in Winnebago County, characteristics of COVID-19 cases and drivers of behaviors in this age group were examined. During March 1-July 18, 2020, 240 young adults received positive SARS-CoV-2 test results, accounting for 32% of all Winnebago County cases. In 30 key informant interviews, most interviewees reported exposure to misinformation, conflicting messages, or opposing views about the need for and effectiveness of masks. Thirteen young adults described social or peer pressure to not wear a mask and perceived severity of disease outcome for themselves as low but high for loved ones at risk. Having low perceived severity of disease outcome might partly explain why, when not in physical contact with loved ones at risk, young adults might attend social gatherings or not wear a mask (2). Exposure to misinformation and unclear messages has been identified as a driver of behavior during an outbreak (3,4), underscoring the importance of providing clear and consistent messages about the need for and effectiveness of masks. In addition, framing communication messages that amplify young adults' responsibility to protect others and target perceived social or peer pressure to not adhere to public health guidance might persuade young adults to adhere to public health guidelines that prevent the spread of COVID-19.


Assuntos
Infecções por Coronavirus/epidemiologia , Exposição Ambiental/estatística & dados numéricos , Pneumonia Viral/epidemiologia , Adolescente , COVID-19 , Feminino , Humanos , Masculino , Pandemias , Fatores de Risco , Wisconsin/epidemiologia , Adulto Jovem
18.
MMWR Morb Mortal Wkly Rep ; 69(12): 339-342, 2020 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-32214083

RESUMO

On February 28, 2020, a case of coronavirus disease (COVID-19) was identified in a woman resident of a long-term care skilled nursing facility (facility A) in King County, Washington.* Epidemiologic investigation of facility A identified 129 cases of COVID-19 associated with facility A, including 81 of the residents, 34 staff members, and 14 visitors; 23 persons died. Limitations in effective infection control and prevention and staff members working in multiple facilities contributed to intra- and interfacility spread. COVID-19 can spread rapidly in long-term residential care facilities, and persons with chronic underlying medical conditions are at greater risk for COVID-19-associated severe disease and death. Long-term care facilities should take proactive steps to protect the health of residents and preserve the health care workforce by identifying and excluding potentially infected staff members and visitors, ensuring early recognition of potentially infected patients, and implementing appropriate infection control measures.


Assuntos
Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Surtos de Doenças , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Instituições Residenciais , Instituições de Cuidados Especializados de Enfermagem , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19 , Doença Crônica , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/prevenção & controle , Surtos de Doenças/prevenção & controle , Evolução Fatal , Feminino , Humanos , Controle de Infecções/normas , Assistência de Longa Duração , Masculino , Pessoa de Meia-Idade , Pneumonia Viral/mortalidade , Pneumonia Viral/prevenção & controle , Fatores de Risco , Washington/epidemiologia , Adulto Jovem
19.
J Pediatr ; 209: 168-175, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30853206

RESUMO

OBJECTIVE: To examine whether a primary care provider (PCP) follow-up visit after emergency department evaluation of concussion improved the children's likelihood of receiving academic support. STUDY DESIGN: This was a prospective cohort study. Concussed children, aged 8-18 years, presenting to a regional pediatric trauma center emergency department (n = 160) were contacted 7 and 30 days after injury to gather data on PCP follow-up, symptoms, quality of life, and receipt of academic support instituted after and because of the concussion. Bivariate comparisons of demographics, concussion characteristics, quality of life, and symptoms were made between children who did and did not receive support using independent samples t tests, Wilcoxon rank sum tests, or χ2 tests. ORs and 95% CIs were calculated using multivariable logistic regression with backwards elimination to test the association between attending an outpatient follow-up visit and the receipt of academic support for variables where P < .2 in bivariate comparisons. RESULTS: Overall, 51.3% (n = 82) received academic support; of these, 84.2% attended a follow-up visit compared with 71.8% of 78 children who attended a follow-up visit but did not receive support (P = .06). Children who received support were more likely to have commercial insurance; experience a sports-related injury mechanism; have parents whose primary language was English; suffer from learning disabilities and migraines; and be non-Hispanic (P < .05). There was no association between attending a follow-up visit and receipt of academic support (adjusted OR 1.83; 95% CI 0.75-4.45). CONCLUSIONS: Although the majority of children received academic support postconcussion, accommodations were associated with several demographic, medical history, and injury characteristics, but not attending a PCP follow-up visit.


Assuntos
Assistência ao Convalescente , Concussão Encefálica/terapia , Educação Inclusiva , Adolescente , Criança , Serviço Hospitalar de Emergência , Feminino , Seguimentos , Humanos , Masculino , Atenção Primária à Saúde , Estudos Prospectivos
20.
J Head Trauma Rehabil ; 34(4): E11-E19, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30608309

RESUMO

OBJECTIVE: To identify socioeconomic, demographic, and caregiver factors associated with children attending primary care provider (PCP) follow-up after emergency department (ED) evaluation for mild traumatic brain injury (mTBI). SETTING: Pediatric trauma center ED. PARTICIPANTS: Children 8 to 18 years of age sustaining mTBI less than 48 hours prior to an ED visit. Mean age of the 183 participants was 12 years with no significant differences between those who attended follow-up and those who did not in race, ethnicity, insurance provider, or PCP office setting. DESIGN: Thirty-day longitudinal cohort study. MAIN MEASURES: Insurance type, PCP practice setting, and a caregiver attitudes survey regarding mTBI recovery and management (5 questions each scored on a 5-point Likert scale). The primary outcome was attending a PCP follow-up visit within 1 month of injury. RESULTS: Females were more likely than males to attend PCP follow-up (adjusted odds ratio: 2.27 [95% confidence interval: 1.00-5.18]). Increasing scores on the caregiver attitudes survey indicating greater concerns about recovery were significantly associated with attending PCP follow-up (adjusted odds ratio: 1.12 per unit increase in composite score [95% confidence interval: 1.02-1.23]). No other socioeconomic, demographic, or injury characteristics were associated with attending PCP follow-up. CONCLUSIONS: The ED counseling regarding PCP follow-up of mTBI should stress the importance of follow-up care to monitor recovery and identify presence of lingering symptoms.


Assuntos
Concussão Encefálica/reabilitação , Atenção Primária à Saúde , Adolescente , Concussão Encefálica/diagnóstico , Criança , Estudos de Coortes , Aconselhamento , Serviço Hospitalar de Emergência , Feminino , Seguimentos , Humanos , Estudos Longitudinais , Masculino , Aceitação pelo Paciente de Cuidados de Saúde , Fatores de Risco , Resultado do Tratamento
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