• I am an epidemiologist with broad interests in infectious disease prevention, screening and diagnostics, and medication adherence. I have extensive experience in design and implementation of studies using electronic health records, randomized trials, and large-scale surveys. My overall goal is to conduct high quality research that improves clinical care and public health among underserved populations in diverse settings.
  • Selected Publications

    Academic Article

    Year Title Altmetric
    2023 Patient-Reported Barriers to Treatment Initiation and Completion for Latent Tuberculosis Infection Among Patients Within a Large Integrated Health Care System in Southern California.Journal of Public Health Management and Practice2023
    2023 Effectiveness of Pneumococcal Conjugate Vaccination Against Virus-Associated Lower Respiratory Tract Infection Among Adults: A Case-Control StudyJournal of Infectious Diseases.  227:498-511. 2023
    2023 Adolescent Self-Consent for COVID-19 Vaccination: Views of Healthcare Workers and Their Adolescent Children on Vaccination Autonomy.Journal of Adolescent Health2023
    2023 Prevention of Neisseria gonorrhoeae With Meningococcal B Vaccine: A Matched Cohort Study in Southern CaliforniaClinical Infectious Diseases.  76:e1341-e1349. 2023
    2023 COVID-19 vaccine concerns of health care providers and ancillary staffPediatric Research.  93:460-462. 2023
    2023 Reply to Chu et alJournal of Infectious Diseases.  227:466-467. 2023
    2023 Effectiveness of Messenger RNA-1273 Vaccine Booster Against Coronavirus Disease 2019 in Immunocompetent AdultsClinical Infectious Diseases.  76:252-262. 2023
    2023 Anakinra or high-dose corticosteroids in COVID-19 pneumonia patients who deteriorate on low-dose dexamethasone: an observational study of comparative effectivenessInternational Journal of Infectious Diseases.  126:87-93. 2023
    2023 The intensity of anticoagulant dosing in hospitalized patients with COVID-19: An observational, comparative effectiveness studyJournal of Hospital Medicine.  18:43-54. 2023
    2023 Understanding Barriers and Facilitators of Pre-exposure Prophylaxis (PrEP) Among Transgender and Gender Diverse Adults in an Integrated Health Care SystemAIDS and Behavior2023
    2022 Changes in Testing and Diagnoses of Sexually Transmitted Infections and HIV During the COVID-19 PandemicSexually Transmitted Diseases.  49:851-854. 2022
    2022 High-dose corticosteroids in patients hospitalized for COVID-19 pneumonia: an observational study of comparative effectivenessInternational Journal of Infectious Diseases.  125:184-191. 2022
    2022 Getting the Message Right: Nurses and Vaccine HesitancyAmerican Journal of Public Health.  112:1576-1578. 2022
    2022 Effectiveness of 13-Valent Pneumococcal Conjugate Vaccine Against Medically Attended Lower Respiratory Tract Infection and Pneumonia Among Older AdultsClinical Infectious Diseases.  75:832-841. 2022
    2022 Sexually Transmitted Infections Among Men and Transgender Women Using HIV Pre-exposure Prophylaxis in a Large Integrated Health System-A Cohort Study 2022
    2022 Development and validation of a prediction algorithm to identify birth in countries with high tuberculosis incidence in two large California health systemsPLoS One.  17. 2022
    2022 Influenza vaccination and mortality among adults with heart failure in an integrated healthcare delivery system, 2009–2018Journal of General Internal Medicine.  37:2405-2412. 2022
    2022 Ambient temperature and risk of urinary tract infection in California: A time-stratified case-crossover study using electronic health recordsEnvironment International.  165. 2022
    2022 Recombinant Adjuvanted Zoster Vaccine and Reduced Risk of Coronavirus Disease 2019 Diagnosis and Hospitalization in Older AdultsJournal of Infectious Diseases.  225:1915-1922. 2022
    2022 “Still on the Fence”: A Mixed Methods Investigation of COVID-19 Vaccine Confidence Among Health Care ProvidersWorkplace Health and Safety.  70:285-297. 2022
    2022 Prevention of Coronavirus Disease 2019 Among Older Adults Receiving Pneumococcal Conjugate Vaccine Suggests Interactions Between Streptococcus pneumoniae and Severe Acute Respiratory Syndrome Coronavirus 2 in the Respiratory TractJournal of Infectious Diseases.  225:1710-1720. 2022
    2022 Author Correction: Effectiveness of mRNA-1273 against SARS-CoV-2 Omicron and Delta variants (Nature Medicine, (2022), 28, 5, (1063-1071), 10.1038/s41591-022-01753-y)Nature Medicine.  28:1095. 2022
    2022 Effectiveness of mRNA-1273 against SARS-CoV-2 Omicron and Delta variantsNature Medicine.  28:1063-1071. 2022
    2022 Association between 2-Dose vs 3-Dose Hepatitis B Vaccine and Acute Myocardial InfarctionJournal of the American Medical Association.  327:1260-1268. 2022
    2022 Durability of mRNA-1273 against COVID-19 in the time of Delta: Interim results from an observational cohort studyPLoS One.  17. 2022
    2022 Herpes Zoster Following Recombinant Zoster Vaccine with or Without Concomitant VaccinationOpen Forum Infectious Diseases.  9. 2022
    2022 Parent intentions to vaccinate children with autism spectrum disorder against COVID-19Journal of Pediatric Nursing.  63:108-110. 2022
    2022 Race/Ethnicity Differences in COVID-19 Vaccine Uptake Among NursesJournal of Transcultural Nursing.  33:134-140. 2022
    2022 Real-world effectiveness of the mRNA-1273 vaccine against COVID-19: Interim results from a prospective observational cohort studyThe Lancet Regional Health. Americas.  6. 2022
    2021 Effectiveness of mRNA-1273 against delta, mu, and other emerging variants of SARS-CoV-2: Test negative case-control studyBritish medical journal.  375. 2021
    2021 Health Care Providers’ Trusted Sources for Information About COVID-19 Vaccines: Mixed Methods StudyJMIR Infodemiology.  1. 2021
    2021 Rate and severity of suspected SARS-Cov-2 reinfection in a cohort of PCR-positive COVID-19 patientsClinical Microbiology and Infection.  27:1860.e7-1860.e10. 2021
    2021 Variation in SARS-CoV-2 molecular test sensitivity by specimen types in a large sample of emergency department patientsAmerican Journal of Emergency Medicine.  50:381-387. 2021
    2021 Distribution of SARS-CoV-2 Variants in a Large Integrated Health Care System — California, March–July 2021 2021
    2021 Hepatitis B vaccine and risk of acute myocardial infarction among individuals with diabetes mellitusPharmacoepidemiology and Drug Safety.  30:1441-1446. 2021
    2021 Considerations for estimating real-world outcomes and value in vaccination: A case study with adult hepatitis B virus vaccinationVaccine.  39:5666-5672. 2021
    2021 Health Care Providers’ Trusted Sources for Information About COVID-19 Vaccines: Mixed Methods Study (Preprint) 2021
    2021 Brief Report: COVID-19 Testing, Characteristics, and Outcomes among People Living with HIV in an Integrated Health System 2021
    2021 Challenges in Phase 4 post-licensure safety studies using real world data in the United States: Hepatitis B vaccine exampleVaccine: X.  8. 2021
    2021 Covid-19 inequities across multiple racial and ethnic groups: Results from an integrated health care organizationACP journal club.  174:1183-1186. 2021
    2021 Referral Linkage to Preexposure Prophylaxis Care and Persistence on Preexposure Prophylaxis in an Integrated Health Care System 2021
    2021 Sociodemographic Inequalities in Urinary Tract Infection in 2 Large California Health SystemsOpen Forum Infectious Diseases.  8. 2021
    2021 Inference of Naturally Acquired Immunity Using a Self-matched Negative-Control DesignEpidemiology.  32:168-178. 2021
    2021 Completion of the two-dose recombinant zoster vaccine series in adults 50 years and olderVaccine.  39:926-932. 2021
    2020 Incremental clinical and economic impact of recombinant zoster vaccination: Real-world data in a budget impact modelJournal of managed care & specialty pharmacy.  26:1567-1575. 2020
    2020 Association of Number of Doses With Hepatitis B Vaccine Series Completion in US AdultsJAMA Network Open.  3:e2027577. 2020
    2020 The epidemiology of herpes zoster in immunocompetent, unvaccinated adults ≥50 years old: Incidence, complications, hospitalization, mortality, and recurrenceJournal of Infectious Diseases.  222:798-806. 2020
    2020 Universal SARS-Cov-2 Screening in Women Admitted for Delivery in a Large Managed Care OrganizationAmerican Journal of Perinatology.  37:1110-1114. 2020
    2020 Outpatient urinary tract infections in an era of virtual healthcare: Trends from 2008 to 2017Clinical Infectious Diseases.  71:100-108. 2020
    2020 Patients with positive malaria tests not given artemisinin-based combination therapies: A research synthesis describing under-prescription of antimalarial medicines in AfricaBMC Medicine.  18. 2020
    2020 Differences in estimates of post-herpetic neuralgia between medical chart review and self-reportJournal of Pain Research.  13:1757-1762. 2020
    2019 How delayed and non-Adherent treatment contribute to onward transmission of malaria: A modelling studyBMJ Global Health.  4. 2019
    2019 pfhrp2 and pfhrp3 Gene Deletions That Affect Malaria Rapid Diagnostic Tests for Plasmodium falciparum: Analysis of Archived Blood Samples From 3 African CountriesJournal of Infectious Diseases.  220:1444-1452. 2019
    2019 Comparison of vaccine effectiveness against influenza hospitalization of cell-based and egg-based influenza vaccines, 2017–2018Vaccine.  37:5807-5811. 2019
    2019 Investigating the nature of competition facing private healthcare facilities: The case of maternity care in Uttar Pradesh, IndiaHealth Policy and Planning.  34:450-460. 2019
    2019 Patient report of herpes zoster pain: Incremental benefits of zoster vaccine liveVaccine.  37:3478-3484. 2019
    2018 Real-world evidence for regulatory decisions: Concomitant administration of zoster vaccine live and pneumococcal polysaccharide vaccineAmerican Journal of Epidemiology.  187:1856-1862. 2018
    2018 An assessment of the malaria-related knowledge and practices of Tanzania's drug retailers: Exploring the impact of drug store accreditationBMC Health Services Research.  18. 2018
    2017 The malaria testing and treatment landscape in Kenya: Results from a nationally representative survey among the public and private sector in 2016Malaria Journal.  16. 2017
    2017 When it just won't go away: Oral artemisinin monotherapy in Nigeria, threatening lives, threatening progressMalaria Journal.  16. 2017
    2017 Assessing the impact of imperfect adherence to artemether-lumefantrine on malaria treatment outcomes using within-host modellingNature Communications.  8. 2017
    2017 Do anti-malarials in Africa meet quality standards? the market penetration of non quality-assured artemisinin combination therapy in eight African countriesMalaria Journal.  16. 2017
    2017 Private sector role, readiness and performance for malaria case management in Uganda, 2015.Malaria Journal.  16:219. 2017
    2017 Testing times: trends in availability, price, and market share of malaria diagnostics in the public and private healthcare sector across eight sub-Saharan African countries from 2009 to 2015.Malaria Journal.  16:205. 2017
    2017 Private sector opportunities and threats to achieving malaria elimination in the Greater Mekong Subregion: results from malaria outlet surveys in Cambodia, the Lao PDR, Myanmar, and Thailand.Malaria Journal.  16:180. 2017
    2017 The malaria testing and treatment landscape in Benin.Malaria Journal.  16:174. 2017
    2017 Evidence on anti-malarial and diagnostic markets in Cambodia to guide malaria elimination strategies and policies.Malaria Journal.  16:171. 2017
    2017 Insights into the availability and distribution of oral artemisinin monotherapy in Myanmar: evidence from a nationally representative outlet survey.Malaria Journal.  16:170. 2017
    2017 What happened to anti-malarial markets after the Affordable Medicines Facility-malaria pilot? Trends in ACT availability, price and market share from five African countries under continuation of the private sector co-payment mechanism.Malaria Journal.  16:173. 2017
    2017 The malaria testing and treatment landscape in mainland Tanzania, 2016.Malaria Journal.  16:202. 2017
    2017 Improving prescribing practices with rapid diagnostic tests (RDTs): Synthesis of 10 studies to explore reasons for variation in malaria RDT uptake and adherenceBMJ Open.  7. 2017
    2017 Introducing malaria rapid diagnostic tests in private medicine retail outlets: A systematic literature reviewPLoS One.  12. 2017
    2017 Clinical and microbiological aspects of β-lactam resistance in staphylococcus lugdunensisJournal of Clinical Microbiology.  55:585-595. 2017
    2017 Impact of introduction of rapid diagnostic tests for malaria on antibiotic prescribing: Analysis of observational and randomised studies in public and private healthcare settingsBritish medical journal.  356. 2017
    2017 The impact of introducing malaria rapid diagnostic tests on fever case management: a synthesis of ten studies from the ACT consortiumAmerican Journal of Tropical Medicine and Hygiene.  97:1170-1179. 2017
    2015 Measuring patient adherence to malaria treatment: A comparison of results from self-report and a customised electronic monitoring devicePLoS One.  10. 2015
    2015 Availability and price of malaria rapid diagnostic tests in the public and private health sectors in 2011: Results from 10 nationally representative cross-sectional retail surveysTropical Medicine and International Health.  20:744-756. 2015
    2015 Are Tanzanian patients attending public facilities or private retailers more likely to adhere to artemisinin-based combination therapy?Malaria Journal.  14. 2015
    2014 Cluster randomized trial of text message reminders to retail staff in tanzanian drug shops dispensing artemether-lumefantrine: Effect on dispenser knowledge and patient adherenceAmerican Journal of Tropical Medicine and Hygiene.  91:844-853. 2014
    2014 The practice of 'doing' evaluation: Lessons learned from nine complex intervention trials in actionImplementation Science.  9. 2014
    2014 Has Tanzania embraced the green leaf? results from outlet and household surveys before and after implementation of the affordable medicines facility - MalariaPLoS One.  9. 2014
    2014 Prevalence of malaria parasitemia and purchase of artemisinin-based combination therapies (ACTs) among drug shop clients in two regions in Tanzania with ACT subsidiesPLoS One.  9. 2014
    2014 Communicating the AMFm message: Exploring the effect of communication and training interventions on private for-profit provider awareness and knowledge related to a multi-country anti-malarial subsidy interventionMalaria Journal.  13. 2014
    2014 How patients take malaria treatment: A systematic review of the literature on adherence to antimalarial drugsPLoS One.  9. 2014
    2014 Improving access to malaria medicine through private-sector subsidies in seven African countriesHealth Affairs.  33:1576-1585. 2014
    2013 Getting antimalarials on target: Impact of national roll-out of malaria rapid diagnostic tests on health facility treatment in three regions of TanzaniaTropical Medicine and International Health.  18:1269-1282. 2013
    2012 Effect of the Affordable Medicines Facility - Malaria (AMFm) on the availability, price, and market share of quality-assured artemisinin-based combination therapies in seven countries: A before-and-after analysis of outlet survey data 2012
    2007 Inactivation of Apc in the mouse prostate causes prostate carcinomaCancer Research.  67:2490-2496. 2007
    2007 Lifelong accumulation of bone in mice lacking Pten in osteoblasts 2007

    Research Overview

  • I have particular interest and experience in (a) vaccine effectiveness and safety studies and vaccine confidence, and (b) evaluating strategies for malaria prevention, screening and diagnostics, and treatment.
    I also lead or contribute to industry and federally-funded studies on COVID-19, latent tuberculosis, pre-exposure prophylaxis for HIV prevention, sexually transmitted infections, and urinary tract infections.
  • Education And Training

  • Doctor of Philosophy in Epidemiology, University of London - London School of Hygiene and Tropical Medicine 2015
  • Master of Public Health in Epidemiology, Emory University 2009
  • Bachelor of Science or Mathematics in Biology, Calvin College 2005
  • Full Name

  • Katia Bruxvoort