Assessing Public Health and Social Measures Against COVID-19 in Japan From March to June 2021.

ABSTRACT:

Background

Public health and social measures (PHSM) against COVID-19 in Japan involve requesting the public to voluntarily reduce social contact; these measures are not legally binding. The effectiveness of such PHSM has been questioned with emergence of the SARS-CoV-2 Alpha variant (B.1.1.7), which exhibited elevated transmissibility.

Materials and methods

We investigated the epidemic dynamics during the fourth epidemic wave in Japan from March to June 2021 involving pre-emergency measures and declaration of a state of emergency (SoE). We estimated the effective reproduction number (R _t ) before and after these interventions, and then analyzed the relationship between lower R _t values and each PHSM.

Results

With imple

SUBMITTER: Hayashi K 

PROVIDER: S-EPMC9315273 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature