JDR Vol.17 No.1 pp. 61-64
doi: 10.20965/jdr.2022.p0061


Population Density and Regional Differences Determine the Probability of COVID-19 Infection

Hideaki Karaki

Foundation of Food Safety and Security
Central Building, 1-23-6 Hamamatsu-cho, Minato-ku, Tokyo 105-0013, Japan

Corresponding author

November 14, 2021
December 14, 2021
January 30, 2022
COVID-19, probability of infection, regional differences, population density

With the passage of almost two years since the outbreak of COVID-19, the characteristics of the infection have become clearer. It is now known that the peaks of infections recur approximately every four months, the probability of infection varies greatly by region, and the probability of infection correlates with population density.

Cite this article as:
Hideaki Karaki, “Population Density and Regional Differences Determine the Probability of COVID-19 Infection,” J. Disaster Res., Vol.17, No.1, pp. 61-64, 2022.
Data files:
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Last updated on May. 20, 2022