76
|
Szilagyi PG, Thomas K, Shah MD, Vizueta N, Cui Y, Vangala S, Kapteyn A. National Trends in the US Public's Likelihood of Getting a COVID-19 Vaccine-April 1 to December 8, 2020. JAMA 2020; 325:2774711. [PMID: 33372943 PMCID: PMC7772743 DOI: 10.1001/jama.2020.26419] [Citation(s) in RCA: 181] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/21/2020] [Indexed: 01/01/2023]
|
77
|
Staat MA, Payne DC, Halasa N, Weinberg GA, Donauer S, Wikswo M, McNeal M, Edwards KM, Szilagyi PG, Bernstein DI, Curns AT, Sulemana I, Esona MD, Bowen MD, Parashar UD. Continued Evidence of the Impact of Rotavirus Vaccine in Children Less Than 3 Years of Age From the United States New Vaccine Surveillance Network: A Multisite Active Surveillance Program, 2006-2016. Clin Infect Dis 2020; 71:e421-e429. [PMID: 32060546 DOI: 10.1093/cid/ciaa150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 02/13/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Since 2006, the New Vaccine Surveillance Network has conducted active, population-based surveillance for acute gastroenteritis (AGE) hospitalizations and emergency department (ED) visits in 3 United States counties. Trends in the epidemiology and disease burden of rotavirus hospitalizations and ED visits were examined from 2006 to 2016. METHODS Children < 3 years of age hospitalized or visiting the ED with AGE were enrolled from January 2006 through June 2016. Bulk stool specimens were collected and tested for rotavirus. Rotavirus-associated hospitalization and ED visit rates were calculated annually with 2006-2007 defined as the prevaccine period and 2008-2016 as the postvaccine period. Rotavirus genotype trends were compared over time. RESULTS Over 11 seasons, 6954 children with AGE were enrolled and submitted a stool specimen (2187 hospitalized and 4767 in the ED). Comparing pre- and postvaccine periods, the proportion of children with rotavirus dramatically declined for hospitalization (49% vs 10%) and ED visits (49% vs 8%). In the postvaccine era, a biennial pattern of rotavirus rates was observed, with a trend toward an older median age. G1P[8] (63%) was the predominant genotype in the prevaccine period with a significantly lower proportion (7%) in the postvaccine period (P < .001). G2P[4] remained stable (8% to 14%) in both periods, whereas G3P[8] and G12P[8] increased in proportion from pre- to postvaccine periods (1% to 25% and 17% to 40%), respectively. CONCLUSIONS The epidemiology and disease burden of rotavirus has been altered by rotavirus vaccination with a biennial disease pattern, sustained low rates of rotavirus in children < 3 years of age, and a shift in the residual genotypes from G1P[8] to other genotypes.
Collapse
|
78
|
Ravandi B, Thompson LR, Barry F, Pade KH, Chang TP, Halterman JS, Szilagyi PG, Okelo SO. Use of a validated asthma questionnaire to increase inhaled corticosteroid prescribing in the pediatric emergency department. J Asthma 2020; 59:378-385. [PMID: 33185486 DOI: 10.1080/02770903.2020.1841225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Asthma guidelines recommend assessment of asthma control and treatment with an ICS when appropriate. Children seen for asthma in the ED often have poorly controlled asthma. Validated questionnaires are rarely used in the ED and ICS are prescribed at less than 5% of ED asthma encounters, leaving many children at risk for continued poor outcomes. OBJECTIVE To determine if use of a validated asthma questionnaire can increase the proportion of children who receive an ICS prescription during an ED asthma visit. METHODS We administered a validated asthma questionnaire (Pediatric Asthma Control and Communication Instrument-ED version [PACCI-ED]) to parents of children 2 - 17 years old presenting for asthma care at a large, urban, academic pediatric ED. Based on national asthma guidelines, the PACCI-ED results were used to determine ICS dose recommendations. ED physicians reviewed the PACCI-ED results and ICS dose recommendations and chose whether to prescribe an ICS upon discharge. ICS prescribing rates during the intervention period were assessed via medical record review and compared to historical controls. We also surveyed parents to examine the association of sociodemographic factors with receipt of an ICS prescription, and surveyed physicians regarding their prescribing decisions. RESULTS Thirteen physicians and seventy-nine children participated. Historically, the ICS prescribing rate for asthma exacerbations discharged from the ED was 13%. The intervention increased ICS prescribing to 56% (p < 0.001). Children with ≥2 asthma exacerbations in the prior year (p < 0.02) and those with moderate-severe persistent asthma (p < 0.02) were more likely to receive an ICS prescription. There were no statistically significant differences in ICS prescribing by sociodemographic characteristics. CONCLUSION A validated asthma questionnaire increased ICS prescribing for children presenting for to the ED for asthma care. Additional strategies are needed to promote prescribing in this setting and ensure that all eligible children receive guideline-based asthma care.
Collapse
|
79
|
Campbell AP, Ogokeh C, Lively JY, Staat MA, Selvarangan R, Halasa NB, Englund JA, Boom JA, Weinberg GA, Williams JV, McNeal M, Harrison CJ, Stewart LS, Klein EJ, Sahni LC, Szilagyi PG, Michaels MG, Hickey RW, Moffat ME, Pahud BA, Schuster JE, Weddle GM, Rha B, Fry AM, Patel M. Vaccine Effectiveness Against Pediatric Influenza Hospitalizations and Emergency Visits. Pediatrics 2020; 146:peds.2020-1368. [PMID: 33020249 DOI: 10.1542/peds.2020-1368] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/20/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Influenza A(H1N1)pdm09 viruses initially predominated during the US 2018-2019 season, with antigenically drifted influenza A(H3N2) viruses peaking later. We estimated vaccine effectiveness (VE) against laboratory-confirmed influenza-associated hospitalizations and emergency department (ED) visits among children in the New Vaccine Surveillance Network. METHODS We tested children 6 months to 17 years with acute respiratory illness for influenza using molecular assays at 7 pediatric hospitals (ED patients <5 years at 3 sites). Vaccination status sources were parental report, state immunization information systems and/or provider records for inpatients, and parental report alone for ED patients. We estimated VE using a test-negative design, comparing odds of vaccination among children testing positive versus negative for influenza using multivariable logistic regression. RESULTS Of 1792 inpatients, 226 (13%) were influenza-positive: 47% for influenza A(H3N2), 36% for A(H1N1)pdm09, 9% for A (not subtyped), and 7% for B viruses. Among 1944 ED children, 420 (22%) were influenza-positive: 48% for A(H3N2), 35% for A(H1N1)pdm09, 11% for A (not subtyped), and 5% for B viruses. VE was 41% (95% confidence interval [CI], 20% to 56%) against any influenza-related hospitalizations, 41% (95% CI, 11% to 61%) for A(H3N2), and 47% (95% CI, 16% to 67%) for A(H1N1)pdm09. VE was 51% (95% CI, 38% to 62%) against any influenza-related ED visits, 39% (95% CI, 15% to 56%) against A(H3N2), and 61% (95% CI, 44% to 73%) against A(H1N1)pdm09. CONCLUSIONS The 2018-2019 influenza vaccine reduced pediatric influenza A-associated hospitalizations and ED visits by 40% to 60%, despite circulation of a drifted A(H3N2) clade.
Collapse
|
80
|
Shah MD, Glenn BA, Chang LC, Chung PJ, Valderrama R, Uyeda K, Szilagyi PG. Reducing Missed Opportunities for Human Papillomavirus Vaccination in School-Based Health Centers: Impact of an Intervention. Acad Pediatr 2020; 20:1124-1132. [PMID: 32294534 DOI: 10.1016/j.acap.2020.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Human papillomavirus (HPV) immunization rates among US adolescents are low. Missed opportunities (MOs) for HPV vaccination are common. School-based health centers (SBHCs) have potential to boost HPV vaccination, but their role in addressing MOs has not been examined. METHODS We implemented a multicomponent intervention, consisting of 3 immunization process workflow modifications combined with provider performance feedback, in 2 Los Angeles area SBHCs and conducted a pre/post evaluation of MOs. Our primary outcome was SBHC-based MOs for HPV vaccination during all visits, including visits for confidential reproductive health care (ie, confidential visits). Secondary outcomes were MOs for meningococcal (MenACWY) and influenza vaccination during visits for nonconfidential care. RESULTS MOs for HPV vaccination decreased during all visit types from the baseline to the intervention period (82.3% to 46.1%; adjusted risk ratio [RR] = 0.558, P < .0001). The rate decrease appeared to be greater during physical examination visits than confidential visits (83.4% to 31.6% vs 98.7% to 70.4%, respectively). MOs for MenACWY (74.5% to 35.0%; adjusted RR = 0.47, P < .0001) and influenza (86.7% to 69.3%; adjusted RR = 0.792, P < .0001) vaccination also decreased during nonconfidential visits. Vaccine refusal was the most frequently documented reason for HPV vaccine MOs during both physical examination and confidential visits. CONCLUSIONS A pragmatic, multicomponent SBHC intervention reduced MOs for HPV vaccination during all visit types. MOs for MenACWY and influenza vaccination also decreased during nonconfidential visits. Findings suggest that practice-level improvements in SBHCs can improve delivery of HPV and other adolescent vaccines.
Collapse
|
81
|
Wallace-Brodeur R, Li R, Davis W, Humiston S, Albertin C, Szilagyi PG, Rand CM. A quality improvement collaborative to increase human papillomavirus vaccination rates in local health department clinics. Prev Med 2020; 139:106235. [PMID: 32800972 DOI: 10.1016/j.ypmed.2020.106235] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 10/23/2022]
Abstract
Human papillomavirus (HPV) vaccination rates are well below the Healthy People 2020 goal of 80%. Vaccinating in settings other than primary care, such as local health departments (LHDs), may help achieve higher HPV immunization rates. We tested the effect of a quality improvement (QI) collaborative to reduce missed opportunities (MOs) for HPV vaccine in LHDs. Between 2016 and 2019, we conducted four consecutive cohorts of a virtual QI collaborative at 24 LHDs across multiple states. Participants were trained on topics including how to provide an effective recommendation for HPV vaccine, strategies to reduce MOs, and motivational interviewing. Throughout the 6-month project implementation, LHDs tested strategies to reduce MOs through Plan-Do-Study-Act cycles, performed chart reviews to identify and characterize MOs, and received feedback reports to assess progress on MOs. HPV vaccination rates were assessed pre- and post-intervention. LHDs reduced MOs for HPV vaccine in all four cohorts with aggregated data showing a 25.3 percentage point reduction in MOs. Modified Poisson regression analysis found a 44% reduction in the relative risk of missing the opportunity for an HPV vaccine at a visit (RR = 0.56, 0.46-0.68, p < .001). This project shows that strategies effective in reducing MO for HPV vaccine in primary care settings are also effective in LHD settings. Training LHD staff on these strategies may help the U.S. approach national goals for HPV vaccine coverage.
Collapse
|
82
|
Rand CM, Concannon C, Wallace-Brodeur R, Davis W, Albertin CS, Humiston SG, Szilagyi PG. Identifying Strategies to Reduce Missed Opportunities for HPV Vaccination in Primary Care: A Qualitative Study of Positive Deviants. Clin Pediatr (Phila) 2020; 59:1058-1068. [PMID: 32597722 DOI: 10.1177/0009922820930357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The objectives of this study were to assess the contextual factors, practice strategies, and sustainability of interventions implemented during a national quality improvement (QI) project to raise human papillomavirus (HPV) vaccination rates. We conducted semistructured interviews with positive deviant practices that successfully reduced missed opportunities by ≥20% for HPV vaccination in the prior year. We assessed leadership support, motivators, interventions used, and sustainability. Key themes related to QI teams included strong leadership support, multidisciplinary teams, having a practice champion, and a collaborative environment. Themes related to the interventions included using a presumptive bundled recommendation for all appropriate vaccines at age 11, previsit planning, and reminders for preventive visits, which were sustainable for most practices 1-year postintervention. Both internal practice-level factors (multidisciplinary teams, collaboration, and previsit planning) and organizational factors (institutional support and health system-level reminders for preventive visits) were key to a successful QI intervention to improve HPV vaccination.
Collapse
|
83
|
Szilagyi PG, Albertin CS, Gurfinkel D, Saville AW, Vangala S, Rice JD, Helmkamp L, Zimet GD, Valderrama R, Breck A, Rand CM, Humiston SG, Kempe A. Prevalence and characteristics of HPV vaccine hesitancy among parents of adolescents across the US. Vaccine 2020; 38:6027-6037. [PMID: 32758380 PMCID: PMC9495911 DOI: 10.1016/j.vaccine.2020.06.074] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/23/2020] [Accepted: 06/26/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND While many clinicians encounter parents or adolescents who refuse HPV vaccine, little is known about the prevalence of hesitancy for HPV vaccine nationally or its association with vaccination. METHODS In April 2019, we surveyed families with adolescents 11-17 years using a national online panel (Knowledge Panel®) as the sampling frame. We assessed the prevalence of HPV vaccine hesitancy with the validated 9-item Vaccine Hesitancy Scale (VHS). We used multivariate analyses to assess demographic factors associated with HPV vaccine hesitancy. We also assessed practical barriers to receipt of HPV vaccine and the relationship between barriers and hesitancy. Finally, we evaluated the association between both HPV vaccine hesitancy and practical barriers on HPV vaccine receipt or refusal. RESULTS 2,177 parents out of 4,185 sampled (52%) completed the survey, 2,020 qualified (lived with adolescent). Using a VHS cut-off score > 3 out of 5 points, 23% of US parents were hesitant about HPV vaccine. Hesitancy was lower among those with Hispanic ethnicity. At least one out of five parents disagreed that the HPV vaccine is beneficial for their adolescent, that the vaccine is effective, protects against HPV-related cancers, or that they followed their adolescent's health-care provider's recommendation about the vaccine. Many were concerned about vaccine side effects and the novelty of the vaccine. Adolescents living with vaccine-hesitant parents were less than one-third as likely to have received the vaccine (RR = 0.29, 95% CI 0.24, 0.35) or completed the vaccine series (RR = 0.29, 95% CI 0.23, 0.36), and were 6-fold more likely to have refused the vaccine because of parental vaccine-related concerns (RR = 6.09, 95% CI = 5.26, 7.04). Most practical barriers were independently associated with vaccine receipt but not with vaccine refusal. CONCLUSIONS HPV vaccine hesitancy is common nationally and strongly related to both under-vaccination and vaccine refusal.
Collapse
|
84
|
Rha B, Curns AT, Lively JY, Campbell AP, Englund JA, Boom JA, Azimi PH, Weinberg GA, Staat MA, Selvarangan R, Halasa NB, McNeal MM, Klein EJ, Harrison CJ, Williams JV, Szilagyi PG, Singer MN, Sahni LC, Figueroa-Downing D, McDaniel D, Prill MM, Whitaker BL, Stewart LS, Schuster JE, Pahud BA, Weddle G, Avadhanula V, Munoz FM, Piedra PA, Payne DC, Langley G, Gerber SI. Respiratory Syncytial Virus-Associated Hospitalizations Among Young Children: 2015-2016. Pediatrics 2020; 146:peds.2019-3611. [PMID: 32546583 DOI: 10.1542/peds.2019-3611] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/17/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is a major cause of hospitalized acute respiratory illness (ARI) among young children. With RSV vaccines and immunoprophylaxis agents in clinical development, we sought to update estimates of US pediatric RSV hospitalization burden. METHODS Children <5 years old hospitalized for ARI were enrolled through active, prospective, population-based surveillance from November 1, 2015, to June 30, 2016, at 7 US pediatric hospital sites. Clinical information was obtained from parent interviews and medical records. Midturbinate nasal and throat flocked swabs were collected and tested for RSV by using molecular diagnostic assays at each site. We conducted descriptive analyses and calculated population-based rates of RSV-associated hospitalizations. RESULTS Among 2969 hospitalized children included in analyses, 1043 (35%) tested RSV-positive; 903 (87%) children who were RSV-positive were <2 years old, and 526 (50%) were <6 months old. RSV-associated hospitalization rates were 2.9 per 1000 children <5 years old and 14.7 per 1000 children <6 months old; the highest age-specific rate was observed in 1-month-old infants (25.1 per 1000). Most children who were infected with RSV (67%) had no underlying comorbid conditions and no history of preterm birth. CONCLUSIONS During the 2015-2016 season, RSV infection was associated with one-third of ARI hospitalizations in our study population of young children. Hospitalization rates were highest in infants <6 months. Most children who were RSV-positive had no history of prematurity or underlying medical conditions, suggesting that all young children could benefit from targeted interventions against RSV.
Collapse
|
85
|
Szilagyi PG, Albertin C, Casillas A, Valderrama R, Duru OK, Ong MK, Vangala S, Tseng CH, Rand CM, Humiston SG, Evans S, Sloyan M, Lerner C. Effect of Patient Portal Reminders Sent by a Health Care System on Influenza Vaccination Rates: A Randomized Clinical Trial. JAMA Intern Med 2020; 180:962-970. [PMID: 32421168 PMCID: PMC7235900 DOI: 10.1001/jamainternmed.2020.1602] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/03/2020] [Indexed: 12/31/2022]
Abstract
Importance Influenza vaccination rates across the US are low. Because few practices send patient reminders for influenza vaccination, a scalable patient reminder system is needed. Objective To evaluate the effect of patient reminders sent via a health care system's electronic health record patient portal on influenza vaccination rates. Design, Setting, and Participants This pragmatic, 4-arm randomized clinical trial was performed from October 1, 2018, to March 31, 2019, across the UCLA (University of California, Los Angeles) health care system. A total of 164 205 patients in 52 primary care practices who had used the patient portal within 12 months were included. Interventions Patients due for an influenza vaccine were sent a letter via the patient portal of the health care system reminding them about the importance of influenza vaccination, safety of the vaccine, and morbidity associated with influenza. Patients were randomized within primary care practices to 1 of 4 study groups (no reminder [n = 41 070] vs 1 reminder [n = 41 055], 2 reminders [n = 41 046], or 3 reminders [n = 41 034]). Main Outcomes and Measures The primary outcome was receipt of 1 or more influenza vaccines as documented in the electronic health record, which was supplemented with influenza vaccination data from external sources (eg, pharmacies). Secondary outcomes were influenza vaccination rates among subgroups and influenza vaccinations self-reported by patients in reply to the portal-based query as having been received elsewhere. Results A total of 164 205 patients (mean [SD] age, 46.2 [19.6] years; 95 779 [58.3%] female) were randomly allocated to 1 of the 4 study arms. In the primary analysis across all ages and not including patient self-reported vaccinations in reply to portal reminders, influenza vaccination rates were 37.5% for those receiving no reminders, 38.0% for those receiving 1 reminder (P = .008 vs no reminder), 38.2% for those receiving 2 reminders (P = .03 vs no reminder), and 38.2% for those receiving 3 reminders (P = .02 vs no reminder). In the secondary analysis not including patient self-reported vaccinations, among adults aged 18 to 64 years (vaccination rates: 32.0% in the control group, 32.8% in the 1-reminder group, 32.8% in the 2-reminder group, and 32.8% in the 3-reminder group; P = .001), male patients (vaccination rates: 37.3% vs 38.3%, 38.6%, and 38.8%; P = .001), non-Hispanic patients (vaccination rates: 37.6% vs 38.2%, 38.3%, and 38.2%; P = .004), and those who were not vaccinated in the prior 2 years (vaccination rates: 15.3% vs 15.9%, 16.3%, and 16.1%; P < .001), vaccination rates were higher in the portal reminder groups than in the control group; the findings in these 3 subgroups mirrored the findings in the entire population. When self-reported vaccinations received elsewhere were included, influenza vaccination rates were 1.4 to 2.9 percentage points higher in the portal reminder groups, with a dose-response effect (0 reminders: 15 537 [37.8%]; 1 reminder: 16 097 [39.2%]; 2 reminders: 16 426 [40.0%]; and 3 reminders: 16 714 [40.7%]; P < .001). Conclusions and Relevance Generic patient portal reminders were effective in minimally increasing influenza vaccination rates, but more intensive or more targeted patient motivational strategies appear to be needed. Trial Registration ClinicalTrials.gov Identifier: NCT03666026.
Collapse
|
86
|
Kempe A, Saville AW, Albertin C, Zimet G, Breck A, Helmkamp L, Vangala S, Dickinson LM, Rand C, Humiston S, Szilagyi PG. Parental Hesitancy About Routine Childhood and Influenza Vaccinations: A National Survey. Pediatrics 2020; 146:e20193852. [PMID: 32540985 PMCID: PMC7329256 DOI: 10.1542/peds.2019-3852] [Citation(s) in RCA: 193] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/13/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The World Health Organization has designated vaccine hesitancy as 1 of the 10 leading threats to global health, yet there is limited current national data on prevalence of hesitancy among US parents. Among a nationally representative sample of US parents, we aimed to (1) assess and compare prevalence of hesitancy and factors driving hesitancy for routine childhood and influenza vaccination and (2) examine associations between sociodemographic characteristics and hesitancy for routine childhood or influenza vaccination. METHODS In February 2019, we surveyed families with children using the largest online panel generating representative US samples. After weighting, we assessed hesitancy using a modified 5-point Vaccine Hesitancy Scale and labeled parents as hesitant if they scored >3. RESULTS A total of 2176 of 4445 parents sampled completed the survey (response rate 49%). Hesitancy prevalence was 6.1% for routine childhood and 25.8% for influenza vaccines; 12% strongly and 27% somewhat agreed they had concerns about serious side effects of both routine childhood and influenza vaccines. A total of 70% strongly agreed that routine childhood vaccines are effective versus 26% for influenza vaccine (P < .001). In multivariable models, an educational level lower than a bachelor's degree and household income <400% of the federal poverty level predicted hesitancy about both routine childhood and influenza vaccines. CONCLUSIONS Almost 1 in 15 US parents are hesitant about routine childhood vaccines, whereas >1 in 4 are hesitant about influenza vaccine. Furthermore, 1 in 8 parents are concerned about vaccine safety for both routine childhood and influenza vaccines, and only 1 in 4 believe influenza vaccine is effective. Vaccine hesitancy, particularly for influenza vaccine, is prevalent in the United States.
Collapse
|
87
|
Rha B, Lively JY, Englund JA, Staat MA, Weinberg GA, Selvarangan R, Halasa NB, Williams JV, Boom JA, Sahni LC, Michaels MG, Stewart LS, Harrison CJ, Szilagyi PG, McNeal MM, Klein EJ, Strelitz B, Lacombe K, Schlaudecker E, Moffatt ME, Schuster JE, Pahud BA, Weddle G, Hickey RW, Avadhanula V, Wikswo ME, Hall AJ, Curns AT, Gerber SI, Langley G. Severe Acute Respiratory Syndrome Coronavirus 2 Infections in Children: Multicenter Surveillance, United States, January-March 2020. J Pediatric Infect Dis Soc 2020; 9:609-612. [PMID: 32556327 PMCID: PMC7337823 DOI: 10.1093/jpids/piaa075] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/30/2022]
Abstract
Previous reports of coronavirus disease 2019 among children in the United States have been based on health jurisdiction reporting. We performed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing on children enrolled in active, prospective, multicenter surveillance during January-March 2020. Among 3187 children, only 4 (0.1%) SARS-CoV-2-positive cases were identified March 20-31 despite evidence of rising community circulation.
Collapse
|
88
|
Kelly MK, Grundmeier RW, Stephens-Shields AJ, Localio R, Shone LP, Wright M, Steffes J, Humiston SG, Rand C, Albertin C, Breck A, Abney DE, McFarland G, Szilagyi PG, Fiks AG. Missed opportunities for human papillomavirus vaccination at office visits during which influenza vaccine was administered: An AAP pediatric research in office settings (PROS) national primary care research network study. Vaccine 2020; 38:5105-5108. [PMID: 32540274 DOI: 10.1016/j.vaccine.2020.05.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Little is known about missed opportunities (MOs) for HPV vaccination during primary care visits at which influenza vaccination is delivered. METHODS We extracted electronic health records for HPV vaccine-eligible 11-to-17-year-olds. We assessed the proportion of visits during which an influenza vaccine was given and an HPV vaccine was due, but not given (i.e., MOs). RESULTS Of 56,135 eligible visits, 57.5% represented MOs for HPV vaccination. MOs were more common at visits where an initial versus subsequent HPV vaccine dose was due (68.6% vs. 31.3%) and for acute/chronic and nurse-only visits compared to preventive visits (74.0% and 80.2% vs. 36.7%). In a multivariable model, MOs were more likely for the initial HPV dose and for non-preventive visits, but did not vary by patient sex/age. CONCLUSIONS HPV vaccine MOs were common during visits where influenza vaccine was administered. Increasing simultaneous administration of HPV and influenza vaccines could increase HPV vaccine coverage.
Collapse
|
89
|
Pahud BA, Hassan F, Harrison CJ, Halasa NB, Chappell JD, Englund JA, Klein EJ, Szilagyi PG, Weinberg GA, Sherman AK, Polage C, Wikswo ME, McDonald LC, Payne DC, Selvarangan R. Detection of Clostridioides difficile by Real-time PCR in Young Children Does Not Predict Disease. Hosp Pediatr 2020; 10:555-562. [PMID: 32482733 DOI: 10.1542/hpeds.2020-0012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVES Diagnosing Clostridioides difficile infections in young children with high asymptomatic colonization is challenging. We compared the frequency of C difficile detection by polymerase chain reaction (PCR) in healthy control (HC) children with those with acute gastroenteritis (AGE) and evaluated fecal-lactoferrin and organism load as possible indicators of true C difficile infection disease. METHODS Stool was collected from children <2 years old with AGE and from HCs. C difficile was detected by real-time PCR, and lactoferrin was measured by enzyme-linked immunosorbent assay. Clinical data were obtained via interviews and chart review. Mann-Whitney U test and χ2 tests were used for group comparisons. RESULTS Of 524 stools collected from 524 children (250 with AGE, 274 HCs), C difficile was detected less in children with AGE (14%, 36 of 250) than in HCs (28%, 76 of 274) stools (P < .0001). Among infants <1 year old (n = 297), C difficile was detected in 18% of children with AGE versus 32% of HCs (P < .005), and among children 1 to 2 years old (n = 227), C difficile was detected in 10% of children with AGE versus 21% of HCs (P < .02). There was no significant difference in C difficile PCR cycle threshold values between children with AGE and HCs or lactoferrin levels in C difficile PCR-positive versus -negative stools. CONCLUSIONS HC children <2 years of age had higher rates of C difficile detection by PCR than children with AGE; C difficile detection by real-time PCR alone is not a reliable means to diagnose C difficile disease in children <2 years old.
Collapse
|
90
|
Wikswo ME, Parashar UD, Lopman B, Selvarangan R, Harrison CJ, Azimi PH, Boom JA, Sahni LC, Englund JA, Klein EJ, Staat MA, McNeal MM, Halasa N, Chappell J, Weinberg GA, Szilagyi PG, Esona MD, Bowen MD, Payne DC. Evidence for Household Transmission of Rotavirus in the United States, 2011-2016. J Pediatric Infect Dis Soc 2020; 9:181-187. [PMID: 30753568 DOI: 10.1093/jpids/piz004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 01/15/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND Rotavirus is a leading cause of acute gastroenteritis (AGE) in children and is highly transmissible. In this study, we assessed the presence of AGE in household contacts (HHCs) of pediatric patients with laboratory-confirmed rotavirus. METHODS Between December 2011 and June 2016, children aged 14 days to 11 years with AGE were enrolled at 1 of 7 hospitals or emergency departments as part of the New Vaccine Surveillance Network. Parental interviews, medical and vaccination records, and stool specimens were collected at enrollment. Stool was tested for rotavirus by an enzyme immunoassay and confirmed by real-time or conventional reverse transcription-polymerase chain reaction assay or repeated enzyme immunoassay. Follow-up telephone interviews were conducted to assess AGE in HHCs the week after the enrolled child's illness. A mixed-effects multivariate model was used to calculate odds ratios. RESULTS Overall, 829 rotavirus-positive subjects and 8858 rotavirus-negative subjects were enrolled. Households of rotavirus-positive subjects were more likely to report AGE illness in ≥1 HHC than were rotavirus-negative households (35% vs 20%, respectively; P < .0001). A total of 466 (16%) HHCs of rotavirus-positive subjects reported AGE illness. Of the 466 ill HHCs, 107 (23%) sought healthcare; 6 (6%) of these encounters resulted in hospitalization. HHCs who were <5 years old (odds ratio, 2.2 [P = .004]) were more likely to report AGE illness than those in other age groups. In addition, 144 households reported out-of-pocket expenses (median, $20; range, $2-$640) necessary to care for an ill HHC. CONCLUSIONS Rotavirus-associated AGE in children can lead to significant disease burden in HHCs, especially in children aged <5 years. Prevention of pediatric rotavirus illness, notably through vaccination, can prevent additional illnesses in HHCs.
Collapse
|
91
|
Pade KH, Thompson LR, Ravandi B, Chang TP, Barry F, Halterman JS, Szilagyi PG, Okelo SO. Parental perception of a picture-based chronic asthma care management tool in an urban pediatric emergency department. J Asthma 2020; 58:1013-1023. [PMID: 32249659 DOI: 10.1080/02770903.2020.1753210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND National asthma guidelines recommend use of an asthma action plan (AAP) as part of chronic asthma care. Unfortunately, AAPs have not been tailored for use in acute care settings, where many patients at risk for poor chronic asthma care are seen, including those who are non-English-speaking or have low literacy levels. We previously developed a picture-based medication plan (PBMP), a unique type of AAP for use in an ambulatory setting and designed to increase patient use and understanding. However, little is known about how parents seeking emergency department (ED) asthma care would perceive the PBMP. OBJECTIVE To assess parental attitudes toward an asthma PBMP in the largest pediatric ED in Los Angeles County. METHODS We surveyed a consecutive sample of English- or Spanish-speaking parents of children 2-17 years seeking ED asthma care. Parents used a 5-point Likert scale for various statements regarding their perceptions of the PBMP. Responses were analyzed by sociodemographics, asthma control, and health literacy using Chi-squared and t-tests. RESULTS 90 parents provided feedback on the PBMP. The majority of parents endorsed the PBMP. Endorsement was 20%-30% higher among Spanish-speaking parents and those who did not complete high-school compared to English-speaking parents and parents with a high school education or higher (p < 0.05 for both comparisons). CONCLUSION Spanish-speaking parents and parents with less than a high-school education overwhelmingly endorsed the PBMP. It may be useful to consider incorporating the PBMP as part of patient-centered chronic asthma care strategies for populations seen in ED settings.
Collapse
|
92
|
Barry F, Thompson LR, Ravandi B, Chang TP, Halterman JS, Szilagyi PG, Okelo SO. Parental preferences for survey mode of administration, interview versus self-administered, with an asthma management questionnaire. J Asthma 2020; 58:665-673. [PMID: 32052668 DOI: 10.1080/02770903.2020.1728766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: National asthma guidelines encourage use of patient surveys to aid clinical assessment. Little is known about how these should be administered in acute care settings such as the emergency department (ED).Objective: Evaluate if parents have a preference for interview versus self-administered surveys in an ED, understand the sociodemographic and clinical characteristics by choice of survey mode of administration, and assess if there is a difference by mode in the parent's perception of an asthma management tool.Methods: A research assistant (RA) surveyed parents of children 2-17 years of age seeking ED asthma care. Parents chose to either self-administer or have an RA-administered survey that included the Pediatric Asthma Control and Communication Instrument-ED version (PACCI-ED). We compared sociodemographic and clinical characteristics and perceptions about the PACCI-ED by mode of survey administration.Results: Of 174 parent participants, 60% chose interviewer-administered surveys. Parents who chose interviewer-administered versus self-administered surveys had lower income, lower educational attainment, and children with uncontrolled asthma (p < .05). Bivariate and multivariate analyses showed that parents who chose interviewer-administered versus self-administered surveys tended to rate the PACCI-ED more favorably.Conclusions: EDs wishing to systematically use an asthma survey may need to plan appropriate resources for staff to administer them, particularly if they serve populations of lower socioeconomic status.
Collapse
|
93
|
Hunter P, Fryhofer SA, Szilagyi PG. Vaccination of Adults in General Medical Practice. Mayo Clin Proc 2020; 95:169-183. [PMID: 31902413 DOI: 10.1016/j.mayocp.2019.02.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/31/2019] [Accepted: 02/14/2019] [Indexed: 01/04/2023]
Abstract
In vaccinating adults, clinicians face 2 types of challenges: (1) staying current on recommendations for influenza, pneumococcal, hepatitis A and B, zoster, and other vaccines and (2) addressing systemic barriers to implementing practices that increase vaccination rates. Although adult immunization rates remain suboptimal, there has been much good news in adult vaccination recently. New high-dose and adjuvanted influenza vaccines help improve immune response and may reduce influenza complications in older adults. The new recombinant zoster vaccine offers significantly more efficacy against zoster outbreaks and postherpetic neuralgia than zoster vaccine live. Pertussis vaccine given during the third trimester of pregnancy may prevent between 50% and 90% of pertussis infections in infants. Shorter time for completion (1 vs 6 months) of new, adjuvanted hepatitis B vaccine may increase adherence. Clinicians can address systemic barriers to increasing vaccination rates in their clinics and health care systems by following the Centers for Disease Control and Prevention's Standards for Adult Immunization Practice. Clinicians can help increase vaccination rates by writing standing orders and by advocating for nurses or medical assistants to receive training and protected time for assessing and documenting vaccination histories and administration. Strong recommendations that presume acceptance of vaccination are effective with most patients. Communication techniques similar to motivational interviewing can help with vaccine-hesitant patients. Clinicians, as experts on providing preventive services, can educate community leaders about the benefits of immunization and can inform vaccine experts about challenges of implementing vaccination recommendations in clinical practice and strategies that can work to raise vaccination rates.
Collapse
|
94
|
Raphael JL, Bloom SR, Chung PJ, Guevara JP, Jacobson RM, Kind T, Klein M, Li STT, McCormick MC, Pitt MB, Poehling KA, Trost M, Sheldrick RC, Young PC, Szilagyi PG. Racial Justice and Academic Pediatrics: A Call for Editorial Action and Our Plan to Move Forward. Acad Pediatr 2020; 20:1041-1043. [PMID: 32791317 PMCID: PMC7417277 DOI: 10.1016/j.acap.2020.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 08/06/2020] [Indexed: 12/19/2022]
|
95
|
Szilagyi PG, Schaffer S, Rand CM, Goldstein NP, Hightower AD, Younge M, Albertin CS, DiBitetto K, Yoo BK, Humiston SG. School-Located Influenza Vaccination: Do Vaccine Clinics at School Raise Vaccination Rates? THE JOURNAL OF SCHOOL HEALTH 2019; 89:1004-1012. [PMID: 31612491 DOI: 10.1111/josh.12840] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 01/15/2019] [Accepted: 01/17/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Only half of US schoolchildren receive influenza vaccine. School-located influenza vaccination (SLIV) might raise vaccination rates but conducting flu vaccine clinics at schools is challenging to implement. We compared 2 school-based programs designed to raise influenza vaccination rates: parent reminder/educational messages sent to parents from schools which is a low-intensity intervention vs the combination of reminder/educational messages plus SLIV clinics which is a high-intensity intervention. METHODS We assigned 36 schools (6 school districts, 2 per group) to 3 groups: (1) control, ie, no SLIV and no parent reminder/education, (2) parent reminder/education emailed by schools, and (3) parent reminder/education plus SLIV clinics. Some schools had SLIV clinics in prior years. Health department nurses conducted SLIV clinics. RESULTS Among 24,832 children at 36 schools, vaccination rates were control (51.3%), parent reminder/education-only (41.2%), and reminder/education + SLIV (58.7%). On multivariate analyses which controlled for vaccination in prior seasons, children in reminder/education + SLIV schools had higher vaccination rates (OR 1.27, 95% CI 1.10-1.47), but children in reminder/education-only schools had lower rates (OR 0.87, 95% CI 0.75-1.00) than children in control schools. CONCLUSIONS Parent reminder/education combined with SLIV clinics raise vaccination rates, but parent reminder/education alone does not.
Collapse
|
96
|
Hassan F, Kanwar N, Harrison CJ, Halasa NB, Chappell JD, Englund JA, Klein EJ, Weinberg GA, Szilagyi PG, Moffatt ME, Oberste MS, Nix WA, Rogers S, Bowen MD, Vinjé J, Wikswo ME, Parashar UD, Payne DC, Selvarangan R. Viral Etiology of Acute Gastroenteritis in <2-Year-Old US Children in the Post-Rotavirus Vaccine Era. J Pediatric Infect Dis Soc 2019; 8:414-421. [PMID: 30184153 DOI: 10.1093/jpids/piy077] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 08/02/2018] [Indexed: 11/14/2022]
Abstract
BACKGROUND The rotavirus disease burden has declined substantially since rotavirus vaccine was introduced in the United States in 2006. The aim of this study was to determine the viral etiology of acute gastroenteritis (AGE) in US children aged <2 years. METHODS The New Vaccine Surveillance Network (NVSN) of geographically diverse US sites conducts active pediatric population-based surveillance in hospitals and emergency departments. Stool samples were collected from children aged <2 years with symptoms of AGE (n = 330) and age-matched healthy controls (HCs) (n = 272) between January and December 2012. Samples were tested by real-time reverse-transcriptase polymerase chain reaction assays {adenovirus (type 40 and 41), norovirus, parechovirus A, enterovirus, sapovirus, and astrovirus} and an enzyme immunoassay (rotavirus). All samples that tested positive were genotyped. RESULTS Detection rates of pathogens in children with AGE versus those of HCs were, respectively, 23.0% versus 6.6% for norovirus (P < .01), 23.0% versus 16.0% for adenovirus (P = .08), 11.0% versus 16.0% for parechovirus A (P = .09), 11.0% versus 9.0% for enterovirus (P = .34), 7.0% versus 3.0% for sapovirus (P = .07), 3.0% versus 0.3% for astrovirus (P = .01), and 3.0% versus 0.4% for rotavirus (P = .01). A high prevalence of adenovirus was detected at 1 surveillance site (49.0% for children with AGE and 43.0% for HCs). Norovirus GII.4 New Orleans was the most frequently detected (33.0%) norovirus genotype. Codetection of >1 virus was more common in children with AGE (16.0%) than in HCs (10.0%) (P = .03). CONCLUSIONS Norovirus, astrovirus, sapovirus, and rotavirus were detected significantly more in children with AGE than in HCs, and norovirus was the leading AGE-causing pathogen in US children aged <2 years during the year 2012.
Collapse
|
97
|
Meites E, Szilagyi PG, Chesson HW, Unger ER, Romero JR, Markowitz LE. Human papillomavirus vaccination for adults: Updated recommendations of the Advisory Committee on Immunization Practices. Am J Transplant 2019. [DOI: 10.1111/ajt.15633] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
98
|
Ogokeh CE, Patel M, Lively JY, Staat MA, Weinberg GA, Boom JA, Englund JA, Williams JV, Halasa NB, Selvarangan R, Harrison CJ, Klein EJ, Schlaudecker EP, Michaels MG, Sahni LC, Szilagyi PG, Stewart LS, Rha B, Beacham L, Bardenheier B, Payne DC, Fry AM, Campbell AP. 2738. Influenza Vaccination During Pregnancy Among Mothers of Infants with Acute Respiratory Illness, United States, 2016–2018. Open Forum Infect Dis 2019. [PMCID: PMC6809774 DOI: 10.1093/ofid/ofz360.2416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Influenza vaccination has been shown to reduce influenza risk in pregnant women and their infants who are not yet age-eligible for vaccine. Ascertainment of vaccination history is important for vaccine safety and effectiveness evaluations. Our goals were to (a) determine coverage, location, and timing of maternal influenza vaccination and (b) compare a subset of self-reported influenza vaccinations with documented vaccine records.
Methods
We enrolled children < 18 years. with acute respiratory illness in 7 pediatric hospitals and emergency departments in the New Vaccine Surveillance Network from December 1, 2016 to October 31, 2018. We interviewed all mothers of enrolled infants < 1 year, and obtained mother’s influenza vaccine information while pregnant. As an option, sites obtained maternal influenza vaccine records from reported sources (e.g., registries, provider records, pharmacies).
Results
Among 5,458 mothers, 2,944 (54%) self-reported receiving influenza vaccine during pregnancy (57% in 2016–2017; 51% in 2017–2018), varying from 49% to 74% by site. Among self-reported vaccinees, 17%, 36%, and 47% received vaccine during their first, second, and third trimester, respectively. Most women (76%) were vaccinated at their OB/GYN or midwife office, 7% at their primary care provider, 7% at their workplace, and 5% at a retail pharmacy. Among 1,338 infants < 6 months. during early influenza season (i.e., born from June to August) and thus ineligible for vaccination, only 46% of mothers reported receiving vaccine during pregnancy (42% reported not receiving it, 12% were unsure). Of 2,242 women for whom vaccine verification was attempted, 1,491 (67%) self-reported receiving influenza vaccine during pregnancy; of those, documentation of vaccine receipt was found for 901 (60%).
Conclusion
Influenza vaccination coverage among pregnant women was suboptimal, potentially increasing the risk of influenza in unvaccinated pregnant women. Infants born to unvaccinated women, particularly those born from June to August, may also be at higher risk since they are not age-eligible to receive vaccine before influenza season. The optimal approach to ascertainment of maternal vaccination history with accuracy and completeness merits further investigation.
Disclosures
All authors: No reported disclosures.
Collapse
|
99
|
Campbell AP, Ogokeh CE, McGowan C, Rha B, Selvarangan R, Staat MA, Weinberg GA, Boom JA, Englund JA, Williams JV, Halasa NB, Szilagyi PG, Harrison CJ, Klein EJ, McNeal M, Michaels MG, Sahni LC, Stewart LS, Lively JY, Beacham L, Payne DC, Fry AM, Patel M. 899. Influenza Vaccine Effectiveness Against Laboratory-Confirmed Influenza in Children Hospitalized with Respiratory Illness in the United States, 2016–2017 and 2017–2018 Seasons. Open Forum Infect Dis 2019. [PMCID: PMC6808794 DOI: 10.1093/ofid/ofz359.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Annual national estimates of influenza vaccine effectiveness (VE) typically measure protection against outpatient medically attended influenza illness. We assessed influenza VE in preventing laboratory-confirmed influenza hospitalization in children across two influenza A(H3N2)-predominant seasons.
Methods
Children < 18 years hospitalized with acute respiratory illness were enrolled at 7 pediatric hospitals in the New Vaccine Surveillance Network. We included subjects ≥6 months with ≤10 days of symptoms enrolled during the 2016–2017 and 2017–2018 seasons (date of first through last influenza-positive case for each site). Combined mid-turbinate and throat swabs were tested using molecular assays. We estimated age-stratified VE from a test-negative design using logistic regression to compare the odds of vaccination among cases positive for influenza with controls testing negative, adjusting for age, enrollment month, site, underlying comorbidities, and race/ethnicity. Full/partial vaccination was defined using ACIP criteria. We verified vaccine receipt from state immunization registries and/or provider records.
Results
Among 3441 children with complete preliminary data, in 2016–2017, 156/1,710 (9%) tested positive for influenza: 91 (58%) with influenza A(H3N2), 5 (3%) with A(H1N1), and 60 (38%) with B viruses. In 2017–2018, 193/1,731 (11%) tested positive: 87 (45%) with influenza A(H3N2), 47 (24%) with A(H1N1), and 58 (30%) with B. VE for all vaccinated children (full and partial) against any influenza was 48% (95% confidence interval, 26%–63%) in 2016–2017 and 45% (24%–60%) in 2017–2018. Combining seasons, VE for fully and partially vaccinated children against any influenza type was 46% (32%–58%); by virus, VE was 30% (4%–49%) for influenza A(H3N2), 71% (46%–85%) for A(H1N1), and 57% (36%–70%) for B viruses. There was no statistically significant difference in VE by age or full/partial vaccination status for any virus (table).
Conclusion
Vaccination in the 2016–2017 and 2017–2018 seasons nearly halved the risk of children being hospitalized with influenza. These findings support the use of vaccination to prevent severe illness in children. Our study highlights the need for a better understanding of the lower VE against influenza A(H3N2) viruses.
Disclosures
All Authors: No reported Disclosures.
Collapse
|
100
|
Midgley C, Rha B, Lively JY, Campbell AP, Boom JA, Azimi PH, Weinberg GA, Staat MA, Halasa NB, Selvarangan R, Englund JA, Klein EJ, Harrison CJ, Williams JV, Schlaudecker EP, Szilagyi PG, Singer MN, Sahni LC, MPH AC, Payne DC, Langley G, Langley G, Watson J, Gerber SI. 2639. Respiratory Virus Detections in Asthma-Related Pediatric Hospitalizations: New Vaccine Surveillance Network, United States. Open Forum Infect Dis 2019. [PMCID: PMC6810959 DOI: 10.1093/ofid/ofz360.2317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background Respiratory viruses are associated with most asthma exacerbations (AEx) in children; however, the role of different viruses in AEx is unclear. We describe respiratory virus detections among pediatric inpatients with AEx (AEx-inpatients). Methods Through active, prospective surveillance at 7 US medical centers, we enrolled inpatients (<18 years) with acute respiratory illness (ARI) during November 1, 2015–June 30, 2016. We defined an AEx-inpatient as an inpatient with a principal admission or discharge diagnosis of asthma (ICD-10-CM, J45.xx). Mid-turbinate nasal and/or throat swabs were tested by molecular assays for influenza A or B, respiratory syncytial virus (RSV), parainfluenza virus 1–3, rhinovirus or enterovirus (RV/EV), human metapneumovirus and adenovirus. We assessed virus detections among AEx-inpatients throughout the surveillance period or by season (winter: December–February; spring: March–May), and by patient age and history of asthma/reactive airway disease (asthma/RAD). Results We tested 3,897 inpatients with ARI; of whom, 954 were AEx-inpatients. Most AEx-inpatients (741/954 [78%]) reported an asthma/RAD history. Viruses were more frequently detected among AEx-inpatients <5 years (350/458 [76%]) than 5–17 years (305/496 [61%], P < 0.001). Most (615/655 [94%]) detections were of single viruses. The most frequent single virus detections were RV/EV (474/954 [50%]) and RSV (76/954 [8%]) but the frequency of each virus varied by season and age group (figure). Single RV/EVs were the most common virus detections in both seasons and all groups. Single RSV detections were prominent among <5 year olds in winter (40/185 [22%]). Among those with single RV/EV or RSV detections, 285/474 (60%) and 49/76 (64%) required supplemental oxygen, respectively (P = 0.676); median length of stay was 1 day (range: 0–45; IQR: 1–2) and 2 days (range: 0–6; IQR: 1–2.5), respectively (P < 0.001). Conclusion AEx-inpatients <5 years were more likely to have respiratory virus detections than those 5–17 years. Single RV/EVs formed the majority of virus detections throughout the surveillance period, regardless of age. RSV played a notable role in winter among patients <5 years. These findings could inform prevention or treatment strategies for virus-associated AEx. ![]()
Disclosures All authors: No reported disclosures.
Collapse
|