Noah G. Schwartz
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View article: Incomplete tissue product tracing during an investigation of a tissue-derived tuberculosis outbreak
Incomplete tissue product tracing during an investigation of a tissue-derived tuberculosis outbreak Open
View article: Systematic contact investigation: An essential infection prevention skill to prevent tuberculosis transmission in healthcare settings
Systematic contact investigation: An essential infection prevention skill to prevent tuberculosis transmission in healthcare settings Open
View article: Diagnosis, Treatment, and Prevention of Tuberculosis Among People Experiencing Homelessness in the United States: Current Recommendations
Diagnosis, Treatment, and Prevention of Tuberculosis Among People Experiencing Homelessness in the United States: Current Recommendations Open
Objective: Tuberculosis (TB) is a public health problem, especially among people experiencing homelessness (PEH). The Advisory Council for the Elimination of Tuberculosis issued recommendations in 1992 for TB prevention and control among P…
View article: Transmission of <i>Mycobacterium tuberculosis</i> to Healthcare Personnel Resulting From Contaminated Bone Graft Material, United States, June 2021–August 2022
Transmission of <i>Mycobacterium tuberculosis</i> to Healthcare Personnel Resulting From Contaminated Bone Graft Material, United States, June 2021–August 2022 Open
A nationwide tuberculosis outbreak linked to a viable bone allograft product contaminated with Mycobacterium tuberculosis was identified in June 2021. Our subsequent investigation identified 73 healthcare personnel with new latent tubercul…
View article: Household characteristics associated with surface contamination of SARS-CoV-2 and frequency of RT-PCR and viral culture positivity–California and Colorado, 2021
Household characteristics associated with surface contamination of SARS-CoV-2 and frequency of RT-PCR and viral culture positivity–California and Colorado, 2021 Open
While risk of fomite transmission of SARS-CoV-2 is considered low, there is limited environmental data within households. This January—April 2021 investigation describes frequency and types of surfaces positive for SARS-CoV-2 by real-time …
View article: Nationwide tuberculosis outbreak in the USA linked to a bone graft product: an outbreak report
Nationwide tuberculosis outbreak in the USA linked to a bone graft product: an outbreak report Open
View article: Table of Contents
Table of Contents Open
View article: SARS-CoV-2 infection risk among vaccinated and unvaccinated household members during the Alpha variant surge – Denver, Colorado, and San Diego, California, January–April 2021
SARS-CoV-2 infection risk among vaccinated and unvaccinated household members during the Alpha variant surge – Denver, Colorado, and San Diego, California, January–April 2021 Open
View article: Behaviors Associated With Household Transmission of SARS-CoV-2 in California and Colorado, January 2021–April 2021
Behaviors Associated With Household Transmission of SARS-CoV-2 in California and Colorado, January 2021–April 2021 Open
View article: Comparison of Home Antigen Testing With RT-PCR and Viral Culture During the Course of SARS-CoV-2 Infection
Comparison of Home Antigen Testing With RT-PCR and Viral Culture During the Course of SARS-CoV-2 Infection Open
Importance As self-collected home antigen tests become widely available, a better understanding of their performance during the course of SARS-CoV-2 infection is needed. Objective To evaluate the diagnostic performance of home antigen test…
View article: Household Transmission and Symptomology of Severe Acute Respiratory Syndrome Coronavirus 2 Alpha Variant among Children—California and Colorado, 2021
Household Transmission and Symptomology of Severe Acute Respiratory Syndrome Coronavirus 2 Alpha Variant among Children—California and Colorado, 2021 Open
Household transmission of SARS-CoV-2 from children and adult primary cases to household members was frequent. The risk of secondary infection was similar among child and adult household contacts. Among children, household transmission of S…
View article: Evaluation of machine learning for predicting COVID-19 outcomes from a national electronic medical records database
Evaluation of machine learning for predicting COVID-19 outcomes from a national electronic medical records database Open
Objective When novel diseases such as COVID-19 emerge, predictors of clinical outcomes might be unknown. Using data from electronic medical records (EMR) allows evaluation of potential predictors without selecting specific features a prior…
View article: Household Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Alpha Variant—United States, 2021
Household Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Alpha Variant—United States, 2021 Open
Background In Spring 2021, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.1.7 (Alpha) became the predominant variant in the United States. Research suggests that Alpha has increased transmissibility compared with non-Alph…
View article: 373. Household transmission of SARS-CoV-2 B.1.1.7 lineage –2 U.S. States, 2021
373. Household transmission of SARS-CoV-2 B.1.1.7 lineage –2 U.S. States, 2021 Open
Background In December 2020, B.1.1.7 lineage of SARS-CoV-2 was first detected in the United States and has since become the dominant lineage. Previous investigations involving B.1.1.7 suggested higher rates of transmission relative to non-…
View article: <i>Notes from the Field:</i>Tuberculosis Outbreak Linked to a Contaminated Bone Graft Product Used in Spinal Surgery — Delaware, March–June 2021
<i>Notes from the Field:</i>Tuberculosis Outbreak Linked to a Contaminated Bone Graft Product Used in Spinal Surgery — Delaware, March–June 2021 Open
View article: Household Transmission of SARS-CoV-2 from Children and Adolescents
Household Transmission of SARS-CoV-2 from Children and Adolescents Open
Household Transmission of SARS-CoV-2 from Children In an outbreak of Covid-19 at a summer camp, 224 confirmed cases in children and adolescents 7 to 19 years of age were identified. After the campe...
View article: Low SARS-CoV-2 Transmission in Elementary Schools — Salt Lake County, Utah, December 3, 2020–January 31, 2021
Low SARS-CoV-2 Transmission in Elementary Schools — Salt Lake County, Utah, December 3, 2020–January 31, 2021 Open
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 fo…
View article: Signs, Symptoms, and Comorbidities Associated With Onset and Prognosis of COVID-19 in a Nursing Home
Signs, Symptoms, and Comorbidities Associated With Onset and Prognosis of COVID-19 in a Nursing Home Open
View article: SARS-CoV-2 Transmission Dynamics in a Sleep-Away Camp
SARS-CoV-2 Transmission Dynamics in a Sleep-Away Camp Open
OBJECTIVES: In late June 2020, a large outbreak of coronavirus disease 2019 (COVID-19) occurred at a sleep-away youth camp in Georgia, affecting primarily persons ≤21 years. We conducted a retrospective cohort study among campers and staff…
View article: Transmission of SARS-CoV-2 from Children and Adolescents
Transmission of SARS-CoV-2 from Children and Adolescents Open
A better understanding of SARS-CoV-2 transmission from children and adolescents is crucial for informing public health mitigation strategies. We conducted a retrospective cohort study among household contacts of primary cases defined as ch…
View article: Adolescent with COVID-19 as the Source of an Outbreak at a 3-Week Family Gathering — Four States, June–July 2020
Adolescent with COVID-19 as the Source of an Outbreak at a 3-Week Family Gathering — Four States, June–July 2020 Open
There is increasing evidence that children and adolescents can efficiently transmit SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19) (1-3). During July-August 2020, four state health departments and CDC investigated a …
View article: Case Series of Multisystem Inflammatory Syndrome in Adults Associated with SARS-CoV-2 Infection — United Kingdom and United States, March–August 2020
Case Series of Multisystem Inflammatory Syndrome in Adults Associated with SARS-CoV-2 Infection — United Kingdom and United States, March–August 2020 Open
During the course of the coronavirus disease 2019 (COVID-19) pandemic, reports of a new multisystem inflammatory syndrome in children (MIS-C) have been increasing in Europe and the United States (1-3). Clinical features in children have va…
View article: SARS-CoV-2 Transmission and Infection Among Attendees of an Overnight Camp — Georgia, June 2020
SARS-CoV-2 Transmission and Infection Among Attendees of an Overnight Camp — Georgia, June 2020 Open
Limited data are available about transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), among youths. During June 17-20, an overnight camp in Georgia (camp A) held orientation for 138 trainees and 120 staff …
View article: Symptom Screening at Illness Onset of Health Care Personnel With SARS-CoV-2 Infection in King County, Washington
Symptom Screening at Illness Onset of Health Care Personnel With SARS-CoV-2 Infection in King County, Washington Open
This study assessed the spectrum of initial symptoms at the onset of polymerase chain reaction–confirmed coronavirus disease 2019 (COVID-19) among health care personnel in King County, Washington.
View article: Epidemiology of Covid-19 in a Long-Term Care Facility in King County, Washington
Epidemiology of Covid-19 in a Long-Term Care Facility in King County, Washington Open
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 approp…
View article: Asymptomatic and Presymptomatic SARS-CoV-2 Infections in Residents of a Long-Term Care Skilled Nursing Facility — King County, Washington, March 2020
Asymptomatic and Presymptomatic SARS-CoV-2 Infections in Residents of a Long-Term Care Skilled Nursing Facility — King County, Washington, March 2020 Open
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) …
View article: Tuberculosis — United States, 2019
Tuberculosis — United States, 2019 Open
Since 1989, the United States has pursued a goal of eliminating tuberculosis (TB) through a strategy of rapidly identifying and treating cases and evaluating exposed contacts to limit secondary cases resulting from recent TB transmission (…
View article: COVID-19 in a Long-Term Care Facility — King County, Washington, February 27–March 9, 2020
COVID-19 in a Long-Term Care Facility — King County, Washington, February 27–March 9, 2020 Open
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 1…
View article: Cardiometabolic correlates of sleep disordered breathing in Andean highlanders
Cardiometabolic correlates of sleep disordered breathing in Andean highlanders Open
Associations between sleep disordered breathing (SDB) and cardiometabolic outcomes have not been examined in highlanders. We performed nocturnal polygraphy in Peruvian highlanders (3825 m). Multivariable linear regression models examined a…
View article: Cross-Sectional Comparison of Sleep-Disordered Breathing in Native Peruvian Highlanders and Lowlanders
Cross-Sectional Comparison of Sleep-Disordered Breathing in Native Peruvian Highlanders and Lowlanders Open
High altitude and hypoxemia at both high and low altitude were associated with increased SDB prevalence and severity. Our findings suggest that a large proportion of highlanders remain at risk for SDB sequelae.