The background occurrence of selected clinical conditions prior to the start of an extensive national vaccination program in Japan.

ABSTRACT:

Introduction

The COVID-19 pandemic caused by SARS-CoV-2 has now affected tens of millions of people globally. It is the hope that vaccines against SARS-CoV-2 will deliver a comprehensive solution to this global pandemic; however, this will require extensive national vaccination programs. Ultimately, clinical conditions and even sudden unexplained death will occur around the time of vaccination, thus a distinction needs to be made between events that are causally related to the vaccine or temporally related to vaccination. This study aimed to estimate the background occurrence of 43 clinical conditions in the Japanese population.

Methods

A retrospective cohort study was conducted from 2013 to 2019 using data from two large healthcare claims databases (MDV and JMDC) in Japan.

SUBMITTER: Sobue T 

PROVIDER: S-EPMC8389412 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature