A Tale Of Two States: Mississippi, West Virginia, And Exemptions To Compulsory School Vaccination Laws

Why Parents Say No to Having Their Children Vaccinated against Measles: A Systematic Review of the Social Determinants of Parental Perceptions on MMR Vaccine Hesitancy

Ongoing outbreaks of measles threaten its elimination status in the United States. Its resurgence points to lower parental vaccine confidence and local pockets of unvaccinated and undervaccinated individuals. The geographic clustering of hesitancy to MMR indicates the presence of social drivers that shape parental perceptions and decisions on immunization. Through a qualitative systematic review of published literature (n = 115 articles; 7 databases), we determined major themes regarding parental reasons for MMR vaccine hesitancy, social context of MMR vaccine hesitancy, and trustworthy vaccine information sources. Fear of autism was the most cited reason for MMR hesitancy. The social drivers of vaccine hesitancy included primary care/healthcare, education, economy, and government/policy factors. Social factors, such as income and education, exerted a bidirectional influence, which facilitated or hindered vaccine compliance depending on how the social determinant was experienced. Fear of autism was the most cited reason for MMR hesitancy. Vaccine hesitancy to MMR and other childhood vaccines clustered in middle- to high-income areas among mothers with a college-level education or higher who preferred internet/social media narratives over physician-based vaccine information. They had low parental trust, low perceived disease susceptibility, and were skeptical of vaccine safety and benefits. Combating MMR vaccine misinformation and hesitancy requires intersectoral and multifaceted approaches at various socioecological levels to address the social drivers of vaccine behavior.

A population study of the NYS measles epidemic: Lessons learned

OBJECTIVES

In 2019 the United States experienced the largest outbreak of measles in 27 years, 19 years after the United States declared measles eliminated. The purpose of this paper was to present a population study of a measles outbreak within Orthodox Jewish communities in New York that led to the elimination of religious exemption for school mandated vaccines.

METHODS

Peer reviewed articles, news media, health department, and government resources were used to investigate environmental factors that led to this outbreak. State, county, and city immunization records were accessed to explore measles compliance rates before and after policy change.

RESULTS

Rockland County had low compliance rates compared to the rest of the state, and the elimination of religious exemptions raised compliance rate almost to state level. In all but one affected New York City zip codes, compliance following policy change rose to 97.95%-99.15%.

CONCLUSIONS

Overall, changes in measles compliance rates reflect policy goals, but localized differences imply a need for more customized interventions for each unique community. Public health planning to promote vaccination should be sensitive to the concerns and perceptions of each community in order for health interventions to have a positive effect.

Australia's 'No Jab No Play' policies: history, design and rationales

OBJECTIVE

Since 2014, five Australian states have enacted 'No Jab, No Play' policies requiring children to be fully vaccinated to attend childcare and early education services. We review the five policies and their implications for implementers - including healthcare and childcare service providers - and analyse factors that shaped the design of state policies.

METHODS

We employed documentary analysis and analysed key informant interviews in NVivo 12.

RESULTS

Our findings reveal similarities and differences between state provisions regarding exemptions, grace periods, responsibilities of service providers and sanctions for non-compliance. We elaborate on five factors of influence that have shaped No Jab, No Play policies: i) impetus for change; ii) policy normalisation, growing concurrence and stringency; iii) increased co-optation of childcare providers into vaccination governance; iv) policy influence and lessons; and v) partisan politics and the development of party ideologies over time.

CONCLUSION

A range of factors contribute to how and why Australia's NJNPlay policies have taken their current forms.

IMPLICATIONS FOR PUBLIC HEALTH

NJNPlay policies impact families and healthcare providers as part of the broader policy ecosystem concerned with maintaining high immunisation rates in Australia. Increased coercion of parents over time has been tempered by partisan positions on exemptions for disadvantage.

Early warning signals of infectious disease transitions: a review

Early warning signals (EWSs) are a group of statistical time-series signals which could be used to anticipate a critical transition before it is reached. EWSs are model-independent methods that have grown in popularity to support evidence of disease emergence and disease elimination. Theoretical work has demonstrated their capability of detecting disease transitions in simple epidemic models, where elimination is reached through vaccination, to more complex vector transmission, age-structured and metapopulation models. However, the exact time evolution of EWSs depends on the transition; here we review the literature to provide guidance on what trends to expect and when. Recent advances include methods which detect when an EWS becomes significant; the earlier an upcoming disease transition is detected, the more valuable an EWS will be in practice. We suggest that future work should firstly validate detection methods with synthetic and historical datasets, before addressing their performance with real-time data which is accruing. A major challenge to overcome for the use of EWSs with disease transitions is to maintain the accuracy of EWSs in data-poor settings. We demonstrate how EWSs behave on reported cases for pertussis in the USA, to highlight some limitations when detecting disease transitions with real-world data.

Vaccines Mandates and Religion: Where are We Headed with the Current Supreme Court?

This article argues that the Supreme Court should not require a religious exemption from vaccine mandates. For children, who cannot yet make autonomous religious decision, religious exemptions would allow parents to make a choice that puts the child at risk and makes the shared environment of the school unsafe - risking other people's children. For adults, there are still good reasons not to require a religious exemption, since vaccines mandates are adopted for public health reasons, not to target religion, are an area where free riding is a real risk, no religion actually prohibits vaccinating under a mandate, and policing religious exemptions is very difficult.

Getting Personal: How Childhood Vaccination Policies Shape the Landscape of Vaccine Exemptions

Background

State-mandated school entry immunization requirements in the United States play an important role in achieving high vaccine coverage, but variations in vaccine exemption policies result in a patchwork of vaccine coverage across the country.

Methods

In this study, we evaluate epidemiological effects and spatial variations in nonmedical exemption (NME) rates in the context of vaccine policies. We first analyze the correlation between NME rates and vaccine coverage for 3 significant childhood vaccinations. Furthermore, we assess the effects of policy changes in a subset of states, using a correlative approach at the state level and performing a clustering analysis at the county level.

Results

We find that higher rates of exemptions are associated with lower vaccination rates of school-aged children in all cases. In a subset of states where exemption policy has recently changed, we show that the effects on statewide NME rates vary widely and that decreases in NMEs can lead to an increase in other types of exemptions. Finally, our clustering analysis in California, Illinois, and Connecticut shows that policy changes affect the spatial distribution of NMEs.

Conclusions

Our work suggests that vaccination policies have significant impacts on patterns of herd immunity. Our findings can be used to develop evidence-based vaccine legislation.

Vaccine Hesitancy, History, and Human Nature: The 2018 Stanley A. Plotkin Lecture

Navigating the waters of vaccine hesitancy requires a view towards history and a deep understanding of how humans think. Getting children vaccinated is as much, or more, about connecting with people as it is about communicating scientific information.

Trends and Characteristics of Proposed and Enacted State Legislation on Childhood Vaccination Exemption, 2011-2017

Objectives. To examine trends and characteristics of proposed and enacted state legislation that would directly affect states' immunization exemption laws.Methods. We performed content analysis of proposed bills in state legislatures from 2011 to 2017. We classified bills as provaccination or antivaccination.Results. State legislators proposed 175 bills, with the volume increasing over time: 92 (53%) bills expanded access to exemptions, and 83 (47%) limited the ability to exempt. Of the 13 bills signed into law, 12 (92%) limited the ability to exempt. Bills that expanded access to exemptions were more likely to come from Republican legislators and Northeastern and Southern states.Conclusions. Although most proposed legislation would have expanded access to exemptions, bills that limited exemptions were more likely to be enacted into law. Legal barriers to exempt one's children from vaccination persist despite vaccine hesitancy, which is encouraging for public health.Public Health Implications. Most vaccine exemption laws introduced in state legislatures would pose threats to the public's health. There is a need for constituents to engage their elected legislators and advocate provaccination policies.

California's Senate Bill 277: Local Health Jurisdictions' Experiences With the Elimination of Nonmedical Vaccine Exemptions

Objectives. To understand the experiences of local health jurisdictions with Senate Bill 277 (SB277), the California law that eliminated nonmedical vaccine exemptions for public- and private-school entry.Methods. We conducted semistructured telephone interviews with health officers and local health department (LHD) staff in California between August and September 2017.Results. Two overall themes emerged: (1) vague legislative and regulatory language led to variation in the interpretation and implementation of SB277, and (2) lack of centralized review of medical exemptions allowed medical exemptions that are not consistent with valid contraindications for immunizations to be accepted. Variation in the interpretation and implementation was commonly reported with provisions related to individualized education programs and special education, and independent study programs and homeschooling. Without a centralized review of medical exemption requests, respondents reported variation in the interpretation of which specialties of physicians can write medical exemptions, which conditions constitute a valid contraindication for immunization, and the process for reporting a questionable or suspicious medical exemption.Conclusions. The regulatory language within SB277 led to variation in how the law was interpreted and implemented within and across LHD jurisdictions and school districts.

On religious and secular exemptions: A case study of childhood vaccination waivers

This paper analyses exemptions to general law through the prism of vaccine waivers in the United States. All US states legally require the vaccination of children prior to school or daycare entry; however, this obligation is accompanied with a system of medical, religious, and/or philosophical exemptions. Nonmedical exemptions became subject of discussion after the 2015 Disneyland measles outbreak in California, which unequivocally brought to light what had been brewing below the surface for a while: a slow but steady decline in vaccination rates in Western societies, resulting in the reoccurrence of measles outbreaks. This can be traced back to an increasing public questioning of vaccines by a growing anti-vaccination movement. In reaction to the outbreak and the public outrage it generated, several states proposed-and some already passed-bills to eliminate nonmedical exemptions. I analyze two questions. First, can legal exemptions from mandatory childhood vaccination schemes for parents who are opposed to vaccination (still) be justified? Second, should legal exemptions be limited to religious objections to vaccination, or should they also be granted to secular objections? Although the argument in the paper starts from the example of the US, it seeks to provide a more general philosophical reflection on the question of exemptions from mandatory childhood vaccination.

School Entry Requirements and Coverage of Nontargeted Adolescent Vaccines

BACKGROUND

Low human papillomavirus (HPV) vaccination coverage is an urgent public health problem requiring action. To identify policy remedies to suboptimal HPV vaccination, we assessed the relationship between states' school entry requirements and adolescent vaccination.

METHODS

We gathered data on states' school entry requirements for adolescent vaccination (tetanus, diphtheria, and pertussis [Tdap] booster; meningococcal; and HPV) from 2007 to 2012 from Immunization Action Coalition. The National Immunization Survey-Teen provided medical record-verified vaccination data for 99 921 adolescents. We calculated coverage (among 13- to 17-year-olds) for individual vaccinations and concomitant vaccination. HPV vaccination outcomes were among female adolescents. Analyses used weighted longitudinal multivariable models.

RESULTS

States with requirements for Tdap booster and meningococcal vaccination had 22 and 24 percentage point increases in coverage for these vaccines, respectively, compared with other states (both P < .05). States with HPV vaccination requirements had <1 percentage point increase in coverage for this vaccine (P < .05). Tdap booster and meningococcal vaccination requirements, respectively, were associated with 8 and 4 percentage point spillover increases for HPV vaccination coverage (both P < .05) and with increases for concomitant vaccination (all P < .05).

CONCLUSIONS

Ensuring all states have meningococcal vaccination requirements could improve the nation's HPV vaccination coverage, given that many states already require Tdap booster but not meningococcal vaccination for school entry. Vaccination programs and clinicians should capitalize on changes in adolescent vaccination, including concomitant vaccination, that may arise after states adopt vaccination requirements. Additional studies are needed on the effects of HPV vaccination requirements and opt-out provisions.

The United States' Piecemeal Approach To Vaccine Policy

In the absence of a single national policy, some states have begun taking action to strengthen vaccination requirements.