Factors associated with the intention to obtain a COVID-19 vaccine among a racially/ethnically diverse sample of women in the USA

Widespread uptake of the COVID-19 vaccine is critical to halt the pandemic. At present, little is known about factors that will affect vaccine uptake, especially among diverse racial/ethnic communities that have experienced the highest burden of COVID. We administered an online survey to a Qualtrics respondent panel of women ages 27-45 years (N = 396) to assess vaccine intentions and attitudes, and trusted vaccine information sources. 56.8% intended to be vaccinated and 25.5% were unsure. In bivariate analyses, a greater percentage of non-Latina White (NLW) and Chinese women reported that they would be vaccinated, compared with Latina and non-Latina Black (NLB) women (p < 0.001). Those who were uninsured, unemployed and those with lower incomes were less likely to say that they would be vaccinated. In analyses stratified by race/ethnicity, NLB women remained significantly less likely to report that they would be vaccinated compared with NLW women (adjusted odds ratio: 0.47; 95% confidence interval: 0.23, 0.94), controlling for age, marital status, income, education, employment, and insurance status. When analyses were additionally controlled for beliefs in vaccine safety and efficacy, racial/ethnic differences were no longer significant (adjusted odds ratio: 0.64; 95% confidence interval: 0.31, 1.34). Given that NLB women were less likely to report the intention to be vaccinated, targeted efforts will be needed to promote vaccine uptake. It will be critical to emphasize that the vaccine is safe and effective; this message may be best delivered by trusted community members.

The Northland emergency meningococcal C vaccination programme

AIM

This paper describes an emergency meningococcal C vaccination programme implemented in Northland, New Zealand in 2011. The programme aimed to reduce the impact of a meningococcal group C outbreak on the Northland population, through vaccination of 85% of children and youth 12 months to <20 years with a meningococcal serogroup C conjugate vaccine.

METHOD

The emergency vaccination programme targeted an estimated population of 44,000 children and youth. Vaccinations were promoted and delivered by Northland District Health Board Public Health Nursing Service, Primary Health Organisations, General Practice, and Maori provider services, at schools, general practice clinics, via community clinics and outreach home-based vaccination services.

RESULTS

32,410 children and youth were vaccinated. Overall coverage reached 73% (72% Maori, 75% non-Maori). Coverage differed across age, ethnic groups, school decile and geographic location. Vaccination coverage was highest for children 5 to <13 years at 84% for Maori and 81% for non-Maori. Coverage was lowest for the 17 to <20 year age group at 46% for Maori and 63% for non-Maori. In the pre-school population, 67% of Maori and 76% of non-Maori children 12 months to <5 years received vaccination. The 13 to <17 year age group reached 71% coverage for Maori and 70% for non-Maori.

CONCLUSION

Equitable, high vaccination coverage is attainable in an emergency vaccination programme in New Zealand. However a range of service options, including community outreach, are necessary to reduce access barriers for some groups. The programme presented useful insights into what is possible with focussed attention to adapting services to meet diverse needs.

Influenza vaccination coverage across ethnic groups in Canada

BACKGROUND

The success of influenza vaccination campaigns may be suboptimal if subgroups of the population face unique barriers or have misconceptions about vaccination. We conducted a national study to estimate influenza vaccine coverage across 12 ethnic groups in Canada to assess the presence of ethnic disparities.

METHODS

We pooled responses to the Canadian Community Health Survey between 2003 and 2009 (n = 437 488). We estimated ethnicity-specific self-reported influenza vaccine coverage for the overall population, for people aged 65 years and older, and for people aged 12-64 years with and without chronic conditions. We used weighted logistic regression models to examine the association between ethnicity and influenza vaccination, adjusting for sociodemographic factors and health status.

RESULTS

Influenza vaccination coverage ranged from 25% to 41% across ethnic groups. After adjusting for sociodemographic factors and health status for people aged 12 years and older, all ethnic groups were more likely to have received a vaccination against influenza than people who self-identified as white, with the exception of those who self-identified as black (odds ratio [OR] 1.01, 95% confidence interval [CI] 0.88-1.15). Compared with white Canadians, Canadians of Filipino (OR 2.00, 95% CI 1.67-2.40) and Southeast Asian (OR 1.66, 95% CI 1.36-2.03) descent had the greatest likelihood of having received vaccination against influenza.

INTERPRETATION

Influenza vaccine coverage in Canada varies by ethnicity. Black and white Canadians have the lowest uptake of influenza vaccine of the ethnic groups represented in our study. Further research is needed to understand the facilitators, barriers and misconceptions relating to vaccination that exist across ethnic groups, and to identify promotional strategies that may improve uptake among black and white Canadians.

Ethnic differences in predictors of HPV vaccination: comparisons of predictors for Latina and non-Latina White women

The purpose of this study was to examine how social and behavioral factors such as age of first intercourse, mother-daughter communication, and perceived norms are associated with human papillomavirus (HPV) vaccination behaviors, and whether ethnicity moderates those associations (non-Latina White versus Latina participants). From June through December 2009, we surveyed a community sample of 309 White and Latina women, ages 15 to 30. We recruited participants from local health care clinics in Des Moines, Iowa. Vaccination status was not significantly different for Whites versus Latinas. The effects of age at first intercourse, mother-daughter communication about values related to sex, and descriptive norms of HPV vaccine uptake were all significantly moderated by ethnicity. The current findings reveal that sociocultural and behavioral factors that affect HPV vaccine uptake do not affect White and Latina women in the same fashion. In the future, public health campaigns about HPV and the HPV vaccine may be more effective if their messages are sensitive to these differences.

Improving community coverage of oral cholera mass vaccination campaigns: lessons learned in Zanzibar

Background

Recent research in two cholera-endemic communities of Zanzibar has shown that a majority (∼94%) of the adult population was willing to receive free oral cholera vaccines (OCVs). Since OCV uptake in the 2009 campaign reached only ∼50% in these communities, an evaluation of social and cultural factors and of barriers was conducted to understand this difference for future cholera control planning.

Methodology/Principal Findings

A random sample of 367 adult peri-urban and rural community residents (46.6% immunized vs. 53.4% unimmunized) was studied with a semi-structured interview that inquired about social and cultural features of cholera depicted in a vignette and barriers to OCV uptake. Symptoms (rectal pain, loose skin only in rural community) and perceived causes (uncovered food, contact with contaminated water) specific for severe diarrhea were associated with uptake. Purchasing drugs from pharmacies to stop diarrhea and vomiting was negatively associated with uptake. Increasing household size, age and previous enteric illness episode were positively related to uptake, the latter only at the rural site. The most prominent barrier to uptake was competing obligations or priorities (reported by 74.5%, identified as most important barrier by 49.5%). Next most prominent barriers were lacking information about the campaign (29.6%, 12.2%), sickness (14.3%, 13.3%) and fear of possible vaccine side effects (15.3%, 5.6%). The majority of unvaccinated respondents requested repetition of the vaccination with free OCVs.

Conclusions/Significance

Factors associated with uptake indicated a positive impact of the vaccination campaign and of sensitization activities on vaccine acceptance behavior. Unlike communities opposed to cholera control or settings where public confidence in vaccines is lacking, identified barriers to uptake indicated a good campaign implementation and trust in the health system. Despite prospects and demand for repeating the vaccination, local decision-makers should reconsider how careful logistical arrangements may improve community coverage and thus effectiveness of vaccination campaigns.

Vaccination against hepatitis B: the Chinese experience

OBJECTIVE

To review the implementation of mass vaccination of hepatitis B vaccine and its critical role in prevention of hepatitis B virus infection in China.

DATA SOURCES

The data were mainly from PubMed, China Hospital Knowledge Database, and other popular Chinese journals published from 1980 to 2008. The search term was "hepatitis B vaccine".

STUDY SELECTION

Original studies conducted in China and critical reviews authored by principal investigators in the field of hepatology in China were selected.

RESULTS

Chinese investigators started to develop hepatitis B vaccine in late 1970s. The first home-made plasma-derived vaccine became available in 1986, which has been completely replaced by the domestically produced recombinant (yeast or Chinese hamster ovary cell) vaccine since 2001. China health authority recommended vaccinating all infants in 1992. From then on, China has put tremendous efforts in implementation of mass vaccination. The overall coverage of hepatitis B vaccine in infants has increased steadily and reached more than 95.0% in urban and 83.0% - 97.0% in rural areas. The chronic HBV carrier rate in children < 10 years of age decreased from 10.0% before the mass vaccination to 1.0% - 2.0% in 2006, and that in general population decreased from 10.0% to 7.2%; overall, the nationwide mass hepatitis B vaccination has reduced more than 30 million of chronic HBV infections and HBV related severe sequlae.

CONCLUSION

The Chinese successful experience in control of hepatitis B by mass vaccination offers an example for any unindustrialized country whoever is committed to control this disease.