Sophia Chiu

ORCID: 0000-0002-8492-8441
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About
Contact & Profiles
Research Areas
  • Infection Control and Ventilation
  • Opioid Use Disorder Treatment
  • Occupational Health and Performance
  • Cardiac Arrest and Resuscitation
  • Air Quality and Health Impacts
  • SARS-CoV-2 and COVID-19 Research
  • Occupational Health and Safety Research
  • COVID-19 epidemiological studies
  • COVID-19 Clinical Research Studies
  • Indoor Air Quality and Microbial Exposure
  • Respiratory viral infections research
  • Influenza Virus Research Studies
  • COVID-19 and Mental Health
  • Poisoning and overdose treatments
  • Viral Infections and Vectors
  • Mosquito-borne diseases and control
  • SARS-CoV-2 detection and testing
  • Forensic Toxicology and Drug Analysis
  • Healthcare professionals’ stress and burnout
  • Stress and Burnout Research
  • Disaster Response and Management
  • Pediatric Pain Management Techniques
  • Legionella and Acanthamoeba research
  • COVID-19 and healthcare impacts
  • Smoking Behavior and Cessation

National Institute for Occupational Safety and Health
2016-2025

Centers for Disease Control and Prevention
2017-2024

Bureau Veritas (France)
2020-2023

Computer Emergency Response Team
2016-2022

Primary Source
2021

Trout Unlimited
2021

University of California, San Francisco
2020

Maxxam (Canada)
2019

Weatherford College
2016-2018

American Conference of Governmental Industrial Hygienists
2018

Data demonstrate a uniform susceptibility of subject-derived hepatitis C virus (HCV) to sofosbuvir, and also show that selection sofosbuvir-resistant HCV is exceedingly rare associated with significant reduction in viral fitness. Background. Sofosbuvir chain-terminating nucleotide analogue inhibitor the NS5B RNA polymerase efficacious subjects genotype 1–6 infection. resistance primarily conferred by S282T substitution NS5B. Methods. sequencing testing from infected genotypes who...

10.1093/cid/ciu697 article EN Clinical Infectious Diseases 2014-09-28

During June 2021, the highly transmissible† B.1.617.2 (Delta) variant of SARS-CoV-2, virus that causes COVID-19, became predominant circulating strain in United States. U.S. pediatric COVID-19-related hospitalizations increased during July-August 2021 following emergence Delta and peaked September 2021.§ As May 12, CDC recommended COVID-19 vaccinations for persons aged ≥12 years,¶ on November 2, were 5-11 years.** To date, clinical signs symptoms, illness course, factors contributing to...

10.15585/mmwr.mm705152a3 article EN MMWR Morbidity and Mortality Weekly Report 2021-12-30

Background: Urinary tract infection (UTI) is the most common bacterial in pregnancy. Known risk factors for UTI pregnancy include diabetes and certain urologic conditions. Other maternal characteristics might also be associated with could provide clues to etiology of Our objective was identify Materials Methods: We used data from pregnant women participating National Birth Defects Prevention Study, a population-based study major structural birth defects 10 U.S. sites, 1997 2011. In...

10.1089/jwh.2020.8946 article EN Journal of Women s Health 2021-09-07

Zika virus is an emerging mosquito-borne flavivirus. Recent outbreaks of disease in the Pacific Islands and Region Americas have identified new modes transmission clinical manifestations, including adverse pregnancy outcomes. However, data on epidemiology findings laboratory-confirmed remain limited. During January 1, 2015-February 26, 2016, a total 116 residents 33 U.S. states District Columbia had laboratory evidence recent infection based testing performed at CDC. Cases include one...

10.15585/mmwr.mm6511e1 article EN MMWR Morbidity and Mortality Weekly Report 2016-03-24

Workers in electronics waste and lamp recycling facilities are at risk of exposure to elemental mercury through inhalation vapor mercury-containing dust.Employers an facility Ohio that crushes lamps expressed concerns about from work processes requested a health hazard evaluation by CDC's National Institute for Occupational Safety Health (NIOSH).In April 2023, NIOSH conducted multidisciplinary investigation assess inorganic exposures, including epidemiologic, environmental, ventilation...

10.15585/mmwr.mm7401a2 article EN MMWR Morbidity and Mortality Weekly Report 2025-01-08

CDC recommends Zika virus testing for potentially exposed persons with signs or symptoms consistent disease, and that health care providers offer to asymptomatic pregnant women within 12 weeks of exposure. During January 3-March 5, 2016, was performed 4,534 who traveled moved from areas active transmission; 3,335 (73.6%) were women. Among received testing, 1,541 (34.0%) reported at least one virus-associated sign symptom (e.g., fever, rash, arthralgia, conjunctivitis), 436 (9.6%) other...

10.15585/mmwr.mm6515e1 article EN MMWR Morbidity and Mortality Weekly Report 2016-04-15

In 2016, an influenza A(H7N2) virus outbreak occurred in cats New York City's municipal animal shelters. One human infection was initially detected. We conducted a serological survey using novel approach to rule out cross-reactive antibodies other seasonal viruses determine whether additional infections had and assess exposure risk. Of 121 shelter workers, one evidence of infection, corresponding seroprevalence 0.8% (95% confidence interval, .02%–4.5%). Five persons exhibited low positive...

10.1093/infdis/jiy595 article EN public-domain The Journal of Infectious Diseases 2018-10-09

Abstract Background Transit workers have jobs requiring close public contact for extended periods of time, placing them at increased risk severe acute respiratory syndrome coronavirus 2 infection and more likely to factors disease 2019 (COVID‐19)‐related complications. Collecting timely occupational data can help inform health guidance transit workers; however, it is difficult collect during a emergency. We used nontraditional epidemiological surveillance methods report demographics job...

10.1002/ajim.23281 article EN American Journal of Industrial Medicine 2021-08-03

There is little empirical guidance regarding communication sources and channels used trusted by agricultural producers. The goal of this study was to characterize frequency use levels trust in safety health information accessed A sample 195 producers surveyed at county fairs Iowa. Information collected about the level 14 channels. Associations between age, gender, education each source or channel were estimated using logistic regression. consisted 72% men with a mean age 50.1 (SD = 15.6)...

10.1080/1059924x.2015.1045156 article EN Journal of Agromedicine 2015-07-03

Abstract Objective To describe coronavirus disease 2019 (COVID‐19) mitigation measures in workplaces of employed US blood donors by industry and work arrangement. Methods During May–December 2021, responded to a survey; we the distribution reported workplace arrangement, organized using hierarchy controls. Results. Of 53,433 respondents representing 21 industries, ventilation upgrades were 4%–38% (overall: 20%); telework access ranged from 14%–80% (53% overall). Requiring masks 84%; range:...

10.1002/ajim.23626 article EN American Journal of Industrial Medicine 2024-06-10

To propose a framework for considering SARS-CoV-2 antigen testing of unexposed asymptomatic workers in selected workplaces.This is commentary based on established occupational safety and health principles, published articles, other pertinent literature, including non-peer-reviewed preprints medrixiv.org prior to April 16, 2021.Not applicable this commentary/viewpoint article.Antigen rapidly evolving useful public tool that can be used guide measures reduce spread the community workplaces....

10.1097/jom.0000000000002269 article EN Journal of Occupational and Environmental Medicine 2021-05-19

Abstract Recent increases in the rate of drug overdose‐related deaths, emergence potent opioids such as carfentanil, and media reports incidents have raised concerns about potential for work‐related exposure to a variety illicit drugs among law enforcement officers (LEOs), other emergency responders, workers United States. To characterize risk associated with unintentional occupational drugs, we retrospectively investigated two that occurred 2017 2018 where LEOs were exposed opioid stimulant...

10.1002/ajim.22967 article EN American Journal of Industrial Medicine 2019-04-23

Abstract Background Work is a social determinant of health that often overlooked. There are major work‐related differences in the risk severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) infection and death, but there have been few analyses rates across industry groups. To date, only one national assessment SARS‐CoV‐2 prevalence by based on self‐report has completed. No study looked at seroprevalence COVID‐19 industry. Methods During May–December 2021, blood donors with...

10.1002/ajim.23552 article EN American Journal of Industrial Medicine 2023-12-04

Abstract Recent increases in deaths the United States from synthetic opioids such as fentanyl and analogues (fentanyls) have raised concerns about possible occupational exposures to these potent agents. Medicolegal death investigators autopsy suite staff might perform job tasks involving exposure fentanyls. The potential for fentanyls among medicolegal technicians at a state medical examiner's office was evaluated through review of caseload characteristics, injury illness logs, procedures...

10.1111/1556-4029.14288 article EN Journal of Forensic Sciences 2020-01-27

In July 2015, a municipal health department in Ohio received complaints of respiratory and ocular symptoms from patrons an indoor waterpark resort. response, the conducted online survey August 2015 through which 19 (68%) patron employee respondents reported eye burning, nose irritation, difficulty breathing, vomiting. On 11, requested hazard evaluation by CDC's National Institute for Occupational Safety Health to characterize prevalence among employees determine etiology work-related...

10.15585/mmwr.mm6637a5 article EN MMWR Morbidity and Mortality Weekly Report 2017-09-21

We aimed to describe coronavirus disease 2019 (COVID-19) deaths among first responders early in the COVID-19 pandemic. used media reports gather timely information about COVID-19-related during March 30-April 30, 2020, and evaluated sensitivity of scanning compared with traditional surveillance. abstracted demographic characteristics, occupation, underlying conditions, exposure source. Twelve 19 US public health jurisdictions data on reported provided verification, 7 whether additional had...

10.1177/0033354921999171 article EN other-oa Public Health Reports 2021-02-22

The nationwide opioid crisis continues to affect not only people who use opioids but also communities at large by increasing the risk of accidental occupational exposure illicit opioids. In addition, emergence highly potent synthetic such as fentanyl and carfentanil increases need protect workers may encounter unknown drug substances during job activities. To support National Institute for Occupational Safety Health Opioids Research Gaps Working Group, we examined state literature concerning...

10.1177/10482911211039566 article EN NEW SOLUTIONS A Journal of Environmental and Occupational Health Policy 2021-08-18

Zika virus is an emerging mosquito-borne flavivirus.Recent outbreaks of disease in the Pacific Islands and Region Americas have identified new modes transmission clinical manifestations, including adverse pregnancy outcomes.However, data on epidemiology findings laboratory-confirmed remain limited.During January 1, 2015-February 26, 2016, a total 116 residents 33 U.S. states District Columbia had laboratory evidence recent infection based testing performed at CDC. Cases included one...

10.15585/mmwr.mm6511e1er article EN MMWR Morbidity and Mortality Weekly Report 2016-03-18

Firefighters often serve as emergency medical services providers and face repeated exposure to potentially traumatic events (PTEs) while participating in opioid overdose responses (OORs), which may impact their mental health. A survey of 173 firefighters who had participated an OOR the previous 6 months was used assess PTEs during such events, job stress, health symptoms, resources address symptoms. Most (97%) reported experiencing one or more responding past months. Associations between are...

10.1080/15555240.2024.2390018 article EN Journal of Workplace Behavioral Health 2024-08-13
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