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\begin{document}

\title{COVID-19 Vaccination and Decreased Death Rates: A County-Level Study in
Pennsylvania}



\author[1]{Ryan Savitz}%
\author[1]{Maria Ramunno}%
\affil[1]{Neumann University}%


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  \date{May 17, 2024}


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\begin{abstract}
\emph{Introduction:} \emph{In this paper we examine the relationship
between vaccination against COVID-19 and both the death rate from
COVID-19 and the rate of COVID-19 spread. Our goal is determine if
vaccination is associated with reduced death and/or spread of disease at
the local level.} \emph{Methods:} \emph{This analysis was conducted at
the county level in the state of Pennsylvania, United States of America,
with data that were collected during the first half of 2022 from the
state of Pennsylvania's Covid Dashboard (}{[}COVID-19 Data for
Pennsylvania
(pa.gov){]}(https://www.health.pa.gov/topics/disease/coronavirus/pages/cases.aspx)
\emph{.} \emph{Result} \emph{s:} \emph{Given that, during this time
period, the vaccines being used were not geared specifically toward the
common variants at that time, we found no statistically significant
relationship between disease spread and vaccination rate at the county
level. That said, we did find a highly statistically significant
relationship between death rate and vaccination rate (p-value = 0.006).
Specifically, a 1\% increase in vaccination rate was found to correspond
to a 0.751\% decrease in death rate (95\% confidence interval (0.236\%,
1.266\%)).} \emph{Conclusions:} \emph{These results support previous
findings from across the world that Covid vaccination is highly
efficacious in preventing death from the disease. Even during a time
when vaccine design was not optimally matched with the prevailing
strains, vaccination was found to reduce death rate. Hence, improving
global vaccine availability is vitally important, in order to achieve
necessary outcomes.}%
\end{abstract}%



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