Trends in Hepatitis C Virus and HIV Care Outcomes Among People With HIV in Georgia, United States, 2014-2019.

OBJECTIVE: If untreated, hepatitis C virus (HCV) leads to poor health outcomes, including liver disease and death, particularly among people with HIV (PWH). We describe trends over time in incidence rates of HCV diagnoses among PWH in the state of Georgia. METHODS: We constructed a retrospective cohort of PWH in Georgia by using matched HIV and HCV case surveillance data from people diagnosed with HCV infection from January 1, 2014, through December 31, 2019. We calculated annual incidence rates per 1000 person-years and estimated trends over time in HCV diagnoses among the cohort of PWH by demographic characteristics and HIV care outcomes using Poisson regression analysis, with α = .05 considered significant. RESULTS: From 2014 through 2019, among 49 530 PWH in Georgia, 1945 (3.9%) were diagnosed with HCV infection. During this period, overall incidence per 1000 person-years of newly diagnosed HCV infection among PWH decreased from 8.7 to 4.5 (P for trend < .001). However, from 2014 through 2019, the annual incidence rates of PWH who were newly diagnosed with HCV infection increased from 4.6 to 7.1 (P for trend = .003) among people born from 1980 through 1989 and from 3.3 to 12.8 (P for trend < .001) among people born in 1990 or later. CONCLUSION: Strategies are needed to increase prevention, diagnosis, and treatment of HIV/HCV coinfection, particularly among PWH born in 1980 and later. Routine linkage of state surveillance data can inform prioritization of PWH at highest risk of HCV infection.

HIV and HCV testing at clinical encounters among people who inject drugs, 2013-2018-Opportunities for increased testing and prevention.

People who inject drugs (PWID) with unsafe injection practices have substantial risk for HIV and hepatitis C virus (HCV) infections. We describe frequency of, and factors associated with, HIV and HCV testing during clinical encounters with PWID. Inpatient and Emergency Department clinical encounters at an Atlanta hospital were abstracted from medical records spanning January 2013-December 2018. We estimated frequency of HIV and HCV testing during injection drug use (IDU)-related encounters among PWID without previous diagnoses. We assessed associations between patient factors and testing using generalized estimating equations models. HIV testing occurred in 39.3% and HCV testing occurred in 17.1% of eligible IDU-related encounters. Testing was more likely in IDU-related encounters during 2017-2018 than in encounters during 2013-2014; (HIV, AOR = 2.14, 95% CI, 1.32-3.49, p < .01). Testing was less likely among Black/African American patients compared to White patients (adjusted odds ratio [AOR]: HIV, AOR = 0.48, 95% confidence interval [CI], 0.33-0.72, p < .01); HCV, AOR = 0.41, 95% CI, 0.24-0.70, p < .01). This difference may be attributable to recent testing among Black patients in non-IDU related encounters. HIV and HCV testing improved over time; however, missed opportunities for testing still existed. Strategies should aim to improve equitable HIV and HCV testing among PWID.

Missed opportunities for prevention: prevalence and incidence of human immunodeficiency virus and hepatitis C virus diagnoses among a cohort of individuals discharged from an urban hospital with injection drug-related diagnoses, 2012-2019.

PURPOSE: Risk for human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections has increased due to the ongoing opioid epidemic and unsafe injection practices. We estimated the prevalence and incidence of HIV and HCV diagnoses among people who inject drugs from hospital-based clinical encounters. METHODS: We linked clinical encounters at an Atlanta hospital during 2012-2018 with state HIV and HCV surveillance records to examine the prevalence of infections at discharge and incidence of infections post clinical encounter. RESULTS: At discharge, 32.9% and 28.6% of patients with injection drug use-related clinical encounters had an HIV or HCV diagnosis, respectively. HIV and HCV diagnoses at the time of discharge were mostly among 40-64 years old patients, males, and Black/African Americans. Post clinical encounter, 3.8% of patients were later diagnosed with HIV, and 16.5% were later diagnosed with HCV, translating to incidence rates of 9.3 per 1000 person-years and 41.5 per 1000 person-years, respectively. The majority of HIV and HCV diagnoses post clinical encounter occurred among Black/African Americans and males. Of patients with HIV and HCV diagnoses post clinical encounter, 27.3% and 11.9% had been tested during their clinical encounter, respectively. CONCLUSIONS: Targeted interventions for HIV/HCV prevention, screening, diagnosis, and linkage to treatment are needed to reduce the incidence of new infections among people who inject drugs.

Impact of multi-agent systemic therapy on all-cause and disease-specific survival for people living with HIV who are diagnosed with non-Hodgkin lymphoma: population-based analyses from the state of Georgia.

For people living with HIV (PLWH) who are subsequently diagnosed with non-Hodgkin lymphoma (NHL), we investigate the impact of standard-of-care (SoC) cancer treatment on all-cause, NHL-specific, and HIV-specific survival outcomes. The focus is on a registry-derived, population-based sample of HIV + adults diagnosed with NHL within 2004-2012 in the state of Georgia. SoC treatment is defined as receipt of multi-agent systemic therapy (MAST). In multivariable survival analyses, SoC cancer treatment is significantly associated with better all-cause and NHL-specific survival, but not better HIV-specific survival across 2004-2017. Having a CD4 count <200 near the time of cancer diagnosis and Ann Arbor stage III/IV disease are associated with worse all-cause and HIV-specific survival; the effects on NHL survival trend negative but are not significant. Future work should expand the geographic base and cancers examined, deepen the level of clinical detail brought to bear, and incorporate the perspectives and recommendations of patients and providers.

Biologic, clinical, and sociodemographic predictors of multi-agent systemic therapy for non-Hodgkin lymphoma in people living with HIV: a population-based investigation in the state of Georgia.

We conducted a population-based study of biologic, clinical, and sociodemographic factors associated with receipt of multi-agent systemic therapy (MAST) by people living with HIV (PLWH) who were diagnosed with non-Hodgkin lymphoma (NHL). Building on recent registry-based analyses, we linked records from the Georgia Cancer Registry, Georgia HIV/AIDS Surveillance Registry, and the Georgia Hospital Discharge Database to identify 328 PLWH adults (age ≥ 18) diagnosed with NHL within 2004-2012. Through logistic regression modeling, we examined factors associated with patients receiving MAST for NHL. Robust predictors included CD4 count ≥200 cells/mm3 around the time of cancer diagnosis, an advanced stage (III or IV) diagnosis of NHL, MSM HIV transmission, and having private health insurance. The strongest single predictor of MAST was CD4 count. Because there is now guideline-integrated evidence that PLWH receiving standard-of-care cancer therapy can achieve substantially improved outcomes, it is vital they have access to regimens routinely provided to HIV-negative cancer patients.

Achieving NHAS 90/90/80 Objectives by 2020: An Interactive Tool Modeling Local HIV Prevalence Projections.

BACKGROUND: Tools using local HIV data to help jurisdictions estimate future demand for medical and support services are needed. We present an interactive prevalence projection model using data obtainable from jurisdictional HIV surveillance and publically available data. METHODS: Using viral load data from Georgia's enhanced HIV/AIDS Reporting System, state level death rates for people living with HIV and the general population, and published estimates for HIV transmission rates, we developed a model for projecting future HIV prevalence. Keeping death rates and HIV transmission rates for undiagnosed, in care/viral load >200, in care/viral load<200, and out of care (no viral load for 12 months) constant, we describe results from simulations with varying inputs projecting HIV incidence and prevalence from 2014 to 2024. RESULTS: In this model, maintaining Georgia's 2014 rates for diagnosis, transitions in care, viral suppression (VS), and mortality by sub-group through 2020, resulted in 85% diagnosed, 59% in care, and 44% VS among diagnosed (85%/58%/44%) with a total of 67 815 PLWH, 33 953 in care, and more than 1000 new cases per year by 2020. Neither doubling the diagnosis rate nor tripling rates of re-engaging out of care PLWH into care alone were adequate to reach 90/90/80 by 2020. We demonstrate a multicomponent scenario that achieved NHAS goals and resulted in 63 989 PLWH, 57 546 in care, and continued annual prevalence increase through 2024. CONCLUSIONS: Jurisdictions can use this HIV prevalence prediction tool, accessible at https://dph.georgia.gov/hiv-prevalence-projections to assess local capacity to meet future HIV care and social services needs. In this model, achieving 90/90/80 by 2020 in Georgia slowed but did not reverse increases in HIV prevalence, and the number of HIV-infected persons needing care and support services more than doubled. Improving the HIV care infrastructure is imperative.

Ryan White HIV/AIDS Program Assistance and HIV Treatment Outcomes.

BACKGROUND: The Ryan White HIV/AIDS Program (RWHAP) provides persons infected with human immunodeficiency virus (HIV) with services not covered by other healthcare payer types. Limited data exist to inform policy decisions about the most appropriate role for RWHAP under the Patient Protection and Affordable Care Act (ACA). METHODS: We assessed associations between RWHAP assistance and antiretroviral therapy (ART) prescription and viral suppression. We used data from the Medical Monitoring Project, a surveillance system assessing characteristics of HIV-infected adults receiving medical care in the United States. Interview and medical record data were collected in 2009-2013 from 18 095 patients. RESULTS: Nearly 41% of patients had RWHAP assistance; 15% relied solely on RWHAP assistance for HIV care. Overall, 91% were prescribed ART, and 75% were virally suppressed. Uninsured patients receiving RWHAP assistance were significantly more likely to be prescribed ART (52% vs 94%; P < .01) and virally suppressed (39% vs 77%; P < .01) than uninsured patients without RWHAP assistance. Patients with private insurance and Medicaid were 6% and 7% less likely, respectively, to be prescribed ART than those with RWHAP only (P < .01). Those with private insurance and Medicaid were 5% and 12% less likely, respectively, to be virally suppressed (P ≤ .02) than those with RWHAP only. Patients whose private or Medicaid coverage was supplemented by RWHAP were more likely to be prescribed ART and virally suppressed than those without RWHAP supplementation (P ≤ .01). CONCLUSIONS: Uninsured and underinsured HIV-infected persons receiving RWHAP assistance were more likely to be prescribed ART and virally suppressed than those with other types of healthcare coverage.

Immunization information systems to increase vaccination rates: a community guide systematic review.

CONTEXT: Immunizations are the most effective way to reduce incidence of vaccine-preventable diseases. Immunization information systems (IISs) are confidential, population-based, computerized databases that record all vaccination doses administered by participating providers to people residing within a given geopolitical area. They facilitate consolidation of vaccination histories for use by health care providers in determining appropriate client vaccinations. Immunization information systems also provide aggregate data on immunizations for use in monitoring coverage and program operations and to guide public health action. EVIDENCE ACQUISITION: Methods for conducting systematic reviews for the Guide to Community Preventive Services were used to assess the effectiveness of IISs. Reviewed evidence examined changes in vaccination rates in client populations or described expanded IIS capabilities related to improving vaccinations. The literature search identified 108 published articles and 132 conference abstracts describing or evaluating the use of IISs in different assessment categories. EVIDENCE SYNTHESIS: Studies described or evaluated IIS capabilities to (1) create or support effective interventions to increase vaccination rates, such as client reminder and recall, provider assessment and feedback, and provider reminders; (2) determine client vaccination status to inform decisions by clinicians, health care systems, and schools; (3) guide public health responses to outbreaks of vaccine-preventable disease; (4) inform assessments of vaccination coverage, missed vaccination opportunities, invalid dose administration, and disparities; and (5) facilitate vaccine management and accountability. CONCLUSIONS: Findings from 240 articles and abstracts demonstrate IIS capabilities and actions in increasing vaccination rates with the goal of reducing vaccine-preventable disease.

Differences in adult influenza vaccine-seeking behavior: the roles of race and attitudes.

BACKGROUND: Racial/ethnic disparities in influenza vaccination among adults are longstanding, and research suggests they result from multiple factors. Influenza vaccine-seeking behavior may be an important aspect to consider when evaluating disparities in vaccination coverage. OBJECTIVE: To determine whether there are differences between blacks and whites in influenza vaccine-seeking behavior among adults 65 years and older. METHODS: Data were analyzed from a national sample of 3138 adults 65 years and older collected through the adult module of the 2007 National Immunization Survey, a random digit dialing telephone survey, which included an oversample of non-Hispanic blacks. Analysis included influenza vaccination rate, location of vaccination, and whether vaccinated individuals specifically went to the location to receive the vaccine (vaccine seekers) by race. The relationship between attitudes about influenza vaccination and vaccine-seeking behavior by race was also examined. RESULTS: White adults 65 years and older were significantly more likely to receive influenza vaccine than blacks, during the 2006-2007 influenza season (68% ± 4% vs 54% ± 3%, respectively), and a significantly higher proportion of vaccinated whites reported seeking out the vaccine than vaccinated blacks (66% ± 4% vs 47% ± 4%, respectively). Blacks were less likely to be vaccine seekers, regardless of education or poverty levels. Among persons vaccinated in a doctor's office, 52% of whites specifically went there to get vaccinated, compared with 37% of blacks. Among persons who believe the vaccine is very effective, 66% ± 5% of whites versus 50% ± 6% of blacks were vaccine seekers. CONCLUSIONS: This study points to the importance of improving our understanding of what factors, in addition to beliefs about vaccination, lead to vaccine seeking and reinforces the need for systematically offering vaccine.

System factors to explain 2009 pandemic H1N1 state vaccination rates for children and high-risk adults in US emergency response to pandemic.

INTRODUCTION: During the 2009-2010 H1N1 pandemic, children and high-risk adults had priority for vaccination. Vaccine in short supply was allocated to states pro-rata by population, but vaccination rates as of January 2010 varied among states from 21.3% to 84.7% for children and 10.4% to 47.2% for high-risk adults. States had different campaign processes and decisions. OBJECTIVE: To determine program and system factors associated with higher state pandemic vaccination coverage for children and high-risk adults during an emergency response with short supply of vaccine. METHODS: Regression analysis of factors predicting state-specific H1N1 vaccination coverage in children and high-risk adults, including state campaign information, demographics, preventive or health-seeking behavior, preparedness funding, providers, state characteristics, and surveillance data. RESULTS: Our modeling explained variation in state-specific vaccination coverage with an adjusted R-squared of 0.82 for children and 0.78 for high-risk adults. We found that coverage of children was positively associated with programs focusing on school clinics and with a larger proportion of doses administered in public sites; negatively with the proportion of children in the population, and the proportion not visiting a doctor because of cost. The coverage for high-risk adults was positively associated with shipments of vaccine to "general access" locations, including pharmacy and retail, with the percentage of women with a Pap smear within the past 3 years and with past seasonal influenza vaccination. It was negatively associated with the expansion of vaccination to the general public by December 4, 2009. For children and high-risk adults, coverage was positively associated with the maximum number of ship-to-sites and negatively associated with the proportion of medically underserved population. CONCLUSION: Findings suggest that distribution and system decisions such as vaccination venues and providers targeted can positively impact vaccination rates for children and high-risk adults. Additionally, existing health infrastructure, health-seeking behaviors, and access affected coverage.

System factors to explain H1N1 state vaccination rates for adults in US emergency response to pandemic.

INTRODUCTION: During the 2009-2010 H1N1 pandemic, vaccine in short supply was allocated to states pro rata by population, yet the vaccination rates of adults differed by state. States also differed in their campaign processes and decisions. Analyzing the campaign provides an opportunity to identify specific approaches that may result in higher vaccine uptake in a future event of this nature. OBJECTIVE: To determine supply chain and system factors associated with higher state H1N1 vaccination coverage for adults in a system where vaccine was in short supply. METHODS: Regression analysis of factors predicting state-specific H1N1 vaccination coverage in adults. Independent variables included state campaign information, demographics, preventive or health-seeking behavior, preparedness funding, providers, state characteristics, and H1N1-specific state data. RESULTS: The best model explained the variation in state-specific adult vaccination coverage with an adjusted R-squared of 0.76. We found that higher H1N1 coverage of adults is associated with program aspects including shorter lead-times (i.e., the number of days between when doses were allocated to a state and were shipped, including the time for states to order the doses) and less vaccine directed to specialist locations. Higher vaccination coverage is also positively associated with the maximum number of ship-to locations, past seasonal influenza vaccination coverage, the percentage of women with a Pap smear, the percentage of the population that is Hispanic, and negatively associated with a long duration of the epidemic peak. CONCLUSION: Long lead-times may be a function of system structure or of efficiency and may suggest monitoring or redesign of distribution processes. Sending vaccine to sites with broad access could be useful when covering a general population. Existing infrastructure may be reflected in the maximum number of ship-to locations, so strengthening routine influenza vaccination programs may help during emergency vaccinations also. Future research could continue to inform program decisions.

Obstetricians and the 2009-2010 H1N1 vaccination effort: implications for future pandemics.

Our objective was to describe the experiences of obstetricians during the 2009-2010 H1N1 vaccination campaign in order to identify possible improvements for future pandemic situations. We conducted a cross-sectional mail survey of a national random sample of 4,000 obstetricians, fielded in Summer 2010. Survey items included availability, recommendation, and patient acceptance of H1N1 vaccine; prioritization of H1N1 vaccine when supply was limited; problems with H1N1 vaccination; and likelihood of providing vaccine during a future influenza pandemic. Response rate was 66 %. Obstetricians strongly recommended H1N1 vaccine during the second (85 %) and third (86 %) trimesters, and less often during the first trimester (71 %) or the immediate postpartum period (76 %); patient preferences followed a similar pattern. H1N1 vaccine was typically available in outpatient obstetrics clinics (80 %). Overall vaccine supply was a major problem for 30 % of obstetricians, but few rated lack of thimerosal-free vaccine as a major problem (12 %). Over half of obstetricians had no major problems with the H1N1 vaccine campaign. Based on this experience, 74 % would be "very likely" and 12 % "likely" to provide vaccine in the event of a future influenza pandemic. Most obstetricians strongly recommended H1N1 vaccine, had few logistical problems beyond limited vaccine supply, and are willing to vaccinate in a future pandemic. Addressing concerns about first-trimester vaccination, developing guidance for prioritization of vaccine in the event of severe supply constraints, and continued facilitation of the logistical aspects of vaccination should be emphasized in future influenza pandemics.

Perceptions matter: beliefs about influenza vaccine and vaccination behavior among elderly white, black and Hispanic Americans.

BACKGROUND: Knowledge and beliefs about influenza vaccine that differ across racial or ethnic groups may promote racial or ethnic disparities in vaccination. OBJECTIVE: To identify associations between vaccination behavior and personal beliefs about influenza vaccine by race or ethnicity and education levels among the U.S. elderly population. METHODS: Data from a national telephone survey conducted in 2004 were used for this study. Responses for 3875 adults ≥ 65 years of age were analyzed using logistic regression methods. RESULTS: Racial and ethnic differences in beliefs were observed. For example, whites were more likely to believe influenza vaccine is very effective in preventing influenza compared to blacks and Hispanics (whites, 60%; blacks, 47%, and Hispanics, 51%, p<0.01). Among adults who believed the vaccine is very effective, self-reported vaccination was substantially higher across all racial/ethnic groups (whites, 93%; blacks, 76%; Hispanics, 78%) compared to adults who believed the vaccine was only somewhat effective (whites 67%; blacks 61%, Hispanics 61%). Also, vaccination coverage differed by education level and personal beliefs of whites, blacks, and Hispanics. CONCLUSIONS: Knowledge and beliefs about influenza vaccine may be important determinants of influenza vaccination among racial/ethnic groups. Strategies to increase coverage should highlight the burden of influenza disease in racial and ethnic populations, the benefits and safety of vaccinations and personal vulnerability to influenza disease if not vaccinated. For greater effectiveness, factors associated with the education levels of some communities may need to be considered when developing or implementing new strategies that target specific racial or ethnic groups.

Involvement of endocrinologists in the 2009 to 2010 H1N1 vaccination effort.

OBJECTIVE: To assess the level of participation of endocrinologists in the United States in the 2009 to 2010 H1N1 vaccination campaign and explore their perspectives on H1N1 vaccination. METHODS: We conducted a cross-sectional, mailed survey of a national sample of 1,991 endocrinologists in June through September 2010. The extent of the response and the survey responses are reported and analyzed. RESULTS: The overall response rate was 59%. The majority of endocrinologists strongly recommended H1N1 vaccine for children, whereas about a third did so for both nonelderly adults and seniors. Just over half (52%) of the responding endocrinologists had agreed to participate in the 2009 to 2010 H1N1 vaccine campaign and received vaccine, in comparison with 73% who offered seasonal influenza vaccine. The supply of H1N1 vaccine was a significant challenge, but otherwise endocrinologists reported few major problems with administration of H1N1 vaccine. Overall, less than half of the respondents thought that they would be "very likely" to provide vaccine in the event of a future influenza pandemic, with a much higher proportion among those endocrinologists who offered seasonal influenza vaccine and H1N1 vaccine. CONCLUSION: Although the experiences of endocrinologists who provided H1N1 vaccine were generally positive, many did not offer the vaccine and indicated that they are hesitant about providing vaccine during a future influenza pandemic. Approaches to increase their participation in future pandemics in an effort to reach persons at high risk for influenza and its complications, such as those with diabetes, should be further explored.

Perspectives of allergists/immunologists on the 2009-2010 H1N1 vaccination effort.

BACKGROUND: Persons with high-risk conditions such as asthma were a target group for national H1N1 vaccine recommendations. Allergists/immunologists (allergists) are a provider group that could vaccinate persons with asthma and other high-risk conditions. Their level of participation in and experiences with the 2009-2010 H1N1 vaccination campaign are unknown. OBJECTIVE: To describe the experiences of allergists related to the 2009-2010 H1N1 vaccination campaign. METHODS: A cross-sectional, mailed survey of a national sample of 1955 allergists providing outpatient care was conducted in June-September 2010. RESULTS: The overall response rate was 72%. Most allergists "strongly recommended" H1N1 vaccine for children, and most "recommended" or "strongly recommended" vaccine for adults. The majority (71%) agreed to participate in the H1N1 vaccine campaign and received vaccine. Vaccine supply was a significant challenge, but otherwise few major problems were experienced with administering H1N1 vaccine. The majority of respondents, particularly among those who participated in the 2009-2010 H1N1 vaccination campaign, felt they would be very likely to vaccinate in the event of future influenza pandemic. CONCLUSIONS: The experiences of allergists in the H1N1 vaccine campaign were generally positive. Most allergists are willing to serve as vaccinators in future influenza pandemics, which will help facilitate broad access to vaccine for patients with asthma and other high-risk conditions.

Perspectives of Pulmonologists on the 2009-2010 H1N1 Vaccination Effort.

Persons with high-risk conditions such as asthma were a target group for H1N1 vaccine recommendations. We conducted a mailed survey of a national sample of pulmonologists to understand their participation in the 2009-2010 H1N1 vaccine campaign. The response rate was 59%. The majority of pulmonologists strongly recommended H1N1 vaccine for children (73%) and adults aged 25-64 years (51%). Only 60% of respondents administered H1N1 vaccine in their practice compared to 87% who offered seasonal influenza vaccine. Other than vaccine supply, respondents who provided H1N1 vaccine reported few logistical problems. Two-thirds of respondents would be very likely to vaccinate during a future influenza pandemic; this rate was higher among those who provided H1N1 vaccine and/or seasonal flu vaccine. In total, the H1N1 vaccine-related experiences of pulmonologists seemed to be positive. However, additional efforts are needed to increase participation in future pandemic vaccination campaigns.

Institutional requirements for influenza vaccination of healthcare personnel: results from a nationally representative survey of acute care hospitals--United States, 2011.

BACKGROUND: Many health professional organizations now endorse influenza vaccination as a condition of employment in healthcare settings. Our objective was to describe institutional requirements for influenza vaccination of healthcare personnel (HCP) among US hospitals during the 2010-2011 influenza season. METHODS: A survey was mailed in 2011 to a nationally representative sample of 998 acute care hospitals. An institutional requirement was defined as "a policy that requires HCP to receive or decline influenza vaccination, with or without consequences for vaccine refusal." A weighted analysis included univariate analyses and logistic regression. RESULTS: Of responding hospitals (n = 808; 81.0%), 440 (55.6%) reported institutional requirements for influenza vaccination. Although employees were uniformly subject to requirements, nonemployees often were not. The proportion of requirements with consequences for vaccine refusal was 44.4% (n = 194); where consequences were imposed, nonmedical exemptions were often granted (69.3%). Wearing a mask was the most common consequence (74.2% of 194 requirements); by contrast, 29 hospitals (14.4%) terminated unvaccinated HCP. After adjustment for demographic factors, the following characteristics remained significantly associated with requirements: location in a state requiring HCP to receive or decline influenza vaccine, caring for inpatients that are potentially vulnerable to influenza, use of ≥9 Advisory Committee on Immunization Practices-recommended, evidence-based influenza vaccination campaign strategies, and for-profit ownership. CONCLUSIONS: Influenza vaccination requirements were prevalent among hospitals of varying size and location. However, few policies were as stringent or as comprehensive as those endorsed by health professional organizations. Because influenza vaccination requirements are a viable alternative for hospitals unable to achieve high coverage through voluntary policies, there is still substantial room for improvement.

US hospital requirements for pertussis vaccination of healthcare personnel, 2011.

In 2011, institutional requirements for pertussis vaccination of healthcare personnel were reported by nearly one-third of surveyed US hospitals. Requirements often applied to personnel with certain clinical responsibilities, such as those caring for infants. Healthcare personnel who were not on an institution's payroll were rarely subject to pertussis vaccination requirements.