Daniel C Ehlman

Dr. Daniel C Ehlman

orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 February 2022 in MMWR. Morbidity and Mortality Weekly Report
Verified
Journal Article
Closed access
DEDaniel C Ehlman
Daniel C Ehlman
EYEllen Yard
Ellen Yard
DSDeborah M. Stone
Deborah M. Stone
CJChristopher M. Jones
Christopher M. Jones
KMKarin A. Mack
Karin A. Mack
This report describes changes in U.S. suicide rates from 2019 to 2020.

1 February 2019 in Vaccine
Verified
Journal Article
Closed access
MJMohamed F. Jalloh
Mohamed F. Jalloh
SBSarah D. Bennett
Sarah D. Bennett
DADidarul Alam
Didarul Alam
PKParyss Kouta
Paryss Kouta
DLDalia Lourenço
Dalia Lourenço
BWBrent Wolff
Brent Wolff

1 August 2010 in Sexually Transmitted Diseases
Verified
Journal Article
Closed access
DEDaniel C Ehlman
Daniel C Ehlman
MJMarcus Ba Jackson
Marcus Ba Jackson
GSGonzalo Saenz
Gonzalo Saenz
DNDavid S. Msw Novak
David S. Msw Novak
RKRachel Kachur
Rachel Kachur
BFBruce W. Furness
Bruce W. Furness
Background: The Internet has become a common venue for meeting sex partners and planning participation in risky sexual behavior. In this article, we evaluate the first 18 months of the Washington, DC, Department of Health Internet-based Partner Notification (IPN) program for early syphilis infections, using the standard Centers for Disease Control and Prevention (CDC) Disease Investigation Specialist (DIS) disposition codes, as well as Washington, DC, Department of Health's IPN-specific outcomes for pseudonymous partners. Methods: We analyzed DIS disposition codes and IPN-specific outcomes from all early syphilis investigations initiated January 2007–June 2008. Internet partners were defined as sex partners for whom syphilis exposure notification was initiated by e-mail because no other locating information existed. If the e-mails resulted in additional locating information, we used the standard CDC disposition codes. Alternatively, the following IPN-specific outcomes were used: Informed of Syphilis Exposure, Informed of General STD Exposure, Not Informed or Unable to Confirm Receipt of General STD Exposure. Results: From the 361 early syphilis patients, a total of 888 sex partners were investigated, of which 381 (43%) were via IPN. IPN led to an 8% increase in the overall number of syphilis patients with at least one treated sex partner, 26% more sex partners being medically examined and treated if necessary, and 83% more sex partners notified of their STD exposure. Conclusions: IPN augmented traditional syphilis case management and aided in the location, notification, testing, and treatment of partners. Conversely, without IPN, these 381 partners would not have been investigated.

31 March 2020 in PLOS Medicine
Verified
Journal Article
Open access
PDF file
LFLeora R Feldstein
Leora R Feldstein
SBSarah D Bennett
Sarah D Bennett
CEConcepción F. Estívariz
Concepción F. Estívariz
GCGretchen M Cooley
Gretchen M Cooley
LWLauren Weil
Lauren Weil
MFMeerjady Sabrina Flora
Meerjady Sabrina Flora
During August 2017–January 2018, more than 700,000 forcibly displaced Rohingyas crossed into Cox’s Bazar, Bangladesh. In response to measles and diphtheria cases, first documented in September and November 2017, respectively, vaccination campaigns targeting children 6 years were not assessed. In MSs, measles seroprotection was similarly high among 1- to 6-year-olds and 7- to 14-year-olds (91% [95% CI 86%–94%] and 99% [95% CI 96%–100%], respectively, p < 0.001). Rubella and diphtheria seroprotection in MSs were significantly lower among 1- to 6-year-olds (84% [95% CI 79%–88%] and 63% [95% CI 56%–70%]) compared to 7- to 14-year-olds (96% [95% CI 90%–98%] and 77% [95% CI 69%–84%]) (p < 0.001). Tetanus seroprevalence was similar among 1- to 6-year-olds and 7- to 14-year-olds (76% [95% CI 69%–81%] and 84% [95% CI 77%–89%], respectively; p = 0.07). Vaccination campaign coverage was consistent with seroprotection in both camps. However, nonresponse, the main limitation of the study, may have biased the seroprotection and campaign coverage results. In this study, we observed that despite multiple vaccination campaigns, immunity gaps exist among children in MSs, particularly for diphtheria, which requires serial vaccinations to achieve maximum protection. Therefore, an additional tetanus-diphtheria campaign may be warranted in MSs to address these remaining immunity gaps. Rapid scale-up and strengthening of routine immunization services to reach children and to deliver missed doses to older children is also critically needed to close immunity gaps and prevent future outbreaks.

1 July 2017 in The Journal of Infectious Diseases
Verified
Journal Article
Open access
PDF file
APAlain Poy
Alain Poy
MEMaya M. V. X. van Den Ent
Maya M. V. X. van Den Ent
SSStephen Sosler
Stephen Sosler
AHAlan R. Hinman
Alan R. Hinman
SBSidney Brown
Sidney Brown
RMRichard Mihigo
Richard Mihigo
To monitor immunization-system strengthening in the Polio Eradication Endgame Strategic Plan 2013–2018 (PEESP), the Global Polio Eradication Initiative identified 1 indicator: 10% annual improvement in third dose of diphtheria- tetanus-pertussis–containing vaccine (DTP3) coverage in polio high-risk districts of 10 polio focus countries. A multiagency team, including staff from the African Region, developed a comprehensive list of outcome and process indicators measuring various aspects of the performance of an immunization system. The development and implementation of the dashboard to assess immunization system performance allowed national program managers to monitor the key immunization indicators and stratify by high-risk and non–high-risk districts. Although only a single outcome indicator goal (at least 10% annual increase in DTP3 coverage achieved in 80% of high-risk districts) initially existed in the endgame strategy, we successfully added additional outcome indicators (eg, decreasing the number of DTP3-unvaccinated children) as well as program process indicators focusing on cold chain, stock availability, and vaccination sessions to better describe progress on the pathway to raising immunization coverage. When measuring progress toward improving immunization systems, it is helpful to use a comprehensive approach that allows for measuring multiple dimensions of the system.

1 July 2017 in The Journal of Infectious Diseases
Verified
Journal Article
Open access
PDF file
SDSamantha B. Dolan
Samantha B. Dolan
MPManish Patel
Manish Patel
LHLee M. Hampton
Lee M. Hampton
EBEleanor Burnett
Eleanor Burnett
DEDaniel C Ehlman
Daniel C Ehlman
AWAaron S. Wallace
Aaron S. Wallace
In 2013, the World Health Organization’s (WHO’s) Strategic Advisory Group of Experts (SAGE) recommended that all 126 countries using only oral polio vaccine (OPV) introduce at least 1 dose of inactivated polio vaccine (IPV) into their routine immunization schedules by the end of 2015. In many countries, the addition of IPV would necessitate delivery of multiple injectable vaccines (hereafter, “multiple injections”) during a single visit, with infants receiving IPV alongside pentavalent vaccine (which covers diphtheria, tetanus, and whole-cell pertussis; hepatitis B; and Haemophilus influenzae type b) and pneumococcal vaccine. Unanticipated concerns emerged from countries over acceptability of multiple injections, sites of administration, and safety. We contextualized the issues surrounding multiple injections by documenting concerns associated with administration of ≥3 injections, existing evidence in the published literature, and findings of a systematic review on administration practices and techniques. Concerns associated with multiple-injection visits were documented from meetings and personal communications with immunization program managers. Published literature on the acceptability of multiple injections by providers and caregivers was summarized, and a systematic review of the literature on administration practices was completed on the following topics: spacing between injection sites (ie, vaccine spacing), site of injection, route of injection, and procedural preparedness. WHO and United Nations Children’s Fund data from 2013–2015 were used to assess multiple-injection visits included in national immunization schedules. Healthcare provider and caregiver attitudes and practices indicated concerns about infant pain, potential adverse effects, and uncertainty about vaccine effectiveness with multiple-injection visits. Published literature reinforced the record of safety and acceptance of the recommended schedule of IPV by the SAGE, but the evidence was largely from developed countries. Parental acceptance of multiple injections was associated with a positive provider recommendation to the caregiver. Findings of the systematic review identified that the intramuscular route is preferred over the subcutaneous route for vaccine administration and that the vastus lateralis muscle is preferred over the deltoid muscle for intramuscular injections. Recommendations on vaccine spacing and procedural preparedness were based on practical necessities, but comparative evidence was not identified. During 2013–2015, 85 countries added IPV to their immunization schedules, 46 (55%) of which adopted a schedule resulting in 3 injectable vaccines being administered in a single visit. The multiple-injection experience identified gaps in guidance for future vaccine introductions. Global partner organizations quickly mobilized to assess, document, and communicate the existing global experience on multiple-injection visits. This evidence-based approach provided reassurance to opinion leaders, health workers, and professional societies, thus encouraging uptake of IPV as a second or third injection in an accelerated manner globally.