Publications by authors named "Dilshani Sarathchandra"

Using the "3Cs" vaccine hesitancy framework which categorizes determinants of vaccine hesitancy across three dimensions-confidence, complacency, and convenience-we identify factors that shape COVID-19 vaccination intake and intention among Black and white residents in Southeast Michigan. We consider both historical discrimination in medicine and contemporary health and environmental crises (i.e.

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Early public health strategies to prevent the spread of COVID-19 in the United States relied on non-pharmaceutical interventions (NPIs) as vaccines and therapeutic treatments were not yet available. Implementation of NPIs, primarily social distancing and mask wearing, varied widely between communities within the US due to variable government mandates, as well as differences in attitudes and opinions. To understand the interplay of trust, risk perception, behavioral intention, and disease burden, we developed a survey instrument to study attitudes concerning COVID-19 and pandemic behavioral change in three states: Idaho, Texas, and Vermont.

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Effective risk communication strategies are critical to reducing lead exposure in mining-impacted communities. Understanding the strength of the associations between perceived risk and individuals' behavioral intentions to protect their health is important for developing these strategies. We conducted a survey within three communities of northern Idaho, USA ( = 306) in or near a Superfund Megasite with legacy mining contamination.

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Using interviews with residents of Idaho (a rural northwest US state) who identify as skeptical of climate change, we examine how skeptics rationalize their doubts about climate science. Skeptics tend to question the reality and human causes of climate change by (1) raising concerns about incentive structures in science that could bias climatology, (2) doubting the accuracy of data and models used by climate scientists, and (3) perceiving some practices of climate science and scientists as exclusionary. Despite these concerns, skeptics exhibit deference to scientific authority when using scientific assessments to make policy decisions, including environmental policy.

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In the past decade the U.S. public has expressed varying degrees of skepticism about certain factual claims, and of "expertise" more broadly.

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Accurately measuring vaccine acceptance is important, especially under current conditions in which misinformation may increase public anxiety about vaccines and politicize vaccination policies. We integrated substantive knowledge, conceptualization and measurement expertise, and survey design principles to develop an instrument for measuring vaccine acceptance across the general public. Given this broad goal, we expect our novel instrument will complement, rather than replace, existing instruments designed specifically to measure parents' vaccine hesitancy.

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Prior studies on population health have reported an "immigrant health advantage" in which immigrants tend to show better health outcomes compared to their native-born racial/ethnic counterparts. Migrant selectivity and cultural buffering have been proposed as explanations for this relative advantage, predominantly in studies that focus on Latino immigrants' health in the US. This study adds to the relatively scant literature on black immigrant health advantage by comparing the two hypotheses (migrant selectivity and cultural buffering) as related to black immigrant health.

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Background: As an island and a former British colony, Sri Lanka is a case of special interest for the study of 1918-1919 influenza pandemic because of its potential for isolation from as well as integration into the world epidemiologic system.

Objectives: To estimate population loss attributable to the influenza pandemic and weekly district-level excess mortality from the pandemic to analyze its spread across the island.

Methods: To measure population loss, we estimated a population growth model using a panel of 100 district-level observations on population for five consecutive censuses from 1891 to 1931, allowing for a one-time drop in population in 1918-1919.

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