# UC Davis Environmental Health Sciences Core Center

> **NIH NIH P30** · UNIVERSITY OF CALIFORNIA AT DAVIS · 2021 · $278,846

## Abstract

ABSTRACT
Latinos have disproportionately suffered from COVID-19. In California, Latinos make up 39% of the population
but 46% of deaths and more than half of all cases. Agricultural employees are essential workers and the risk of
SARS-CoV-2 transmission is high because social distancing and masking are difficult—especially in very hot
weather. In addition, the risk of SARS-CoV-2 transmission within households is high as one-third of agricultural
employees live in crowded and multi-family housing (>1 persons/room). In these households, self-isolation or
quarantine is simply not feasible when a family member has been exposed. Non-pharmaceutical interventions
such as testing, social distancing, quarantine, and isolation have played a critical role in mitigating the impact of
COVID-19. However, despite being at increased risk of infection, testing rates among Latinos is lower compared
to Whites and Latinos are more likely to be positive when tested and to require higher level of care at the time of
positive test. In the US, nearly 13% of Hispanic or Latino have received at least one dose, and 10% have been
fully vaccinated, despite eligibility open to all on April 19th, 2021.There is a major gap in COVID-19 vaccination
among underserved and/or vulnerable Latino population. We propose a three-tiered approach to address
barriers to COVID-19 vaccination in predominantly Latino counties in California, Yolo, Fresno, Madera, and
Stanislaus. ÓRALE COVID-19! was proposed to overcome motivational and logistic barriers to testing by
decreasing the time from symptoms, to seeking testing, to securing testing, to receiving test results, to consult
about self-isolation, quarantine, and increase the proportion who successfully self-isolated and quarantine. The
aims of this study are to: (1) reduce vaccine hesitancy, improve vaccine update while continuing to promote
testing with culturally and linguistically appropriate targeted communication and incentives guided by trusted
community partners, (2) Develop a literacy-supported decision making process to reduce vaccine hesitancy,
improve vaccine update while continuing to promote testing, and (3) evaluate the impact of interventions on
vaccine hesitancy, uptake of vaccine and testing through robust statistical and mathematical models that provide
a flexible framework to evaluate different scenarios of vaccine rollout. The proposed study will leverage strong
community partnerships, expertise of collaborators with local CEAL member to incorporate CEAL-developed
resources that will strengthen the implementation of our interventions, strong team organization, survey
development expertise, translation of materials that will be critical for communication and dissemination, robust
data capturing, harmonization, statistical, and modeling support, evaluation unit, and testing data that can be
integrated to vaccination efforts to allow for a comprehensive characterization and evaluation of interventions on
vaccine hesitancy a...

## Key facts

- **NIH application ID:** 10403897
- **Project number:** 3P30ES023513-07S1
- **Recipient organization:** UNIVERSITY OF CALIFORNIA AT DAVIS
- **Principal Investigator:** Irva Hertz-Picciotto
- **Activity code:** P30 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $278,846
- **Award type:** 3
- **Project period:** 2015-05-05 → 2025-03-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10403897

## Citation

> US National Institutes of Health, RePORTER application 10403897, UC Davis Environmental Health Sciences Core Center (3P30ES023513-07S1). Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/grant/nih/10403897. Licensed CC0.

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