Katsuma Hayashi
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Explore the profile of Katsuma Hayashi including associated specialties, affiliations and a list of published articles.
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24
Citations
1986
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Recent Articles
1.
Zhang T, Qiao J, Hayashi K, Nishiura H
J Theor Biol
. 2024 Mar;
584:111771.
PMID: 38452809
Our objective was to decompose mortality mechanisms during the coronavirus disease 2019 (COVID-19) pandemic to estimate direct, indirect, and associated deaths from COVID-19. Given the confirmatory diagnosis of COVID-19, a...
2.
Li T, Fujimoto M, Hayashi K, Anzai A, Nishiura H
Behav Sci (Basel)
. 2023 Nov;
13(11).
PMID: 37998697
Although the Japanese government removed mask-wearing requirements in 2023, relatively high rates of mask wearing have continued in Japan. We aimed to assess psychological reasons and the strength of habitual...
3.
Possible adaptation measures for climate change in preventing heatstroke among older adults in Japan
Fujimoto M, Hayashi K, Nishiura H
Front Public Health
. 2023 Oct;
11:1184963.
PMID: 37808973
Introduction: Heatstroke mortality is highest among older adults aged 65 years and older, and the risk is even doubled among those aged 75 years and older. The incidence of heatstroke...
4.
Nishiura H, Kayano T, Hayashi K, Kobayashi T, Okada Y
Euro Surveill
. 2023 Mar;
28(9).
PMID: 36862097
No abstract available.
5.
Ueda M, Hayashi K, Nishiura H
Viruses
. 2023 Feb;
15(2).
PMID: 36851670
The transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to be overdispersed, meaning that only a fraction of infected cases contributes to super-spreading. While cluster interventions are...
6.
Sasanami M, Fujimoto M, Kayano T, Hayashi K, Nishiura H
J Theor Biol
. 2022 Dec;
559:111384.
PMID: 36528092
Coronavirus disease 2019 (COVID-19) booster vaccination has been implemented globally in the midst of surges in infection due to the Delta and Omicron variants of severe acute respiratory syndrome coronavirus...
7.
Hayashi K, Nishiura H
BMC Infect Dis
. 2022 Dec;
22(1):933.
PMID: 36510193
Background: It has been descriptively argued that the case fatality risk (CFR) of coronavirus disease (COVID-19) is elevated when medical services are overwhelmed. The relationship between CFR and pressure on...
8.
Hayashi K, Fujimoto M, Nishiura H
Front Public Health
. 2022 Aug;
10:959312.
PMID: 35991044
Background: In metropolitan Tokyo in 2014, Japan experienced its first domestic dengue outbreak since 1945. The objective of the present study was to quantitatively assess the future risk of dengue...
9.
Jung S, Hayashi K, Kayano T, Nishiura H
Epidemics
. 2022 Jul;
40:100618.
PMID: 35908478
Background: The number of coronavirus disease 2019 (COVID-19) cases was expected to increase during the Tokyo Olympic Games because of the increased physical contact within and between the domestic population...
10.
Hayashi K, Kayano T, Anzai A, Fujimoto M, Linton N, Sasanami M, et al.
Front Med (Lausanne)
. 2022 Jul;
9:937732.
PMID: 35903315
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...