Vaccination is reasonably effective in limiting the spread of COVID-19 infections, hospitalizations and deaths with COVID-19

Damijan, Jože (author), Damijan, Sandra (author), Kostevc, Črt (author)

This paper uses large cross-country data for 110 countries to examine the effectiveness of COVID vaccination coverage during the delta variant outbreak. Our results confirm that vaccines are reasonably effective in both limiting the spread of infections and containing more severe disease progression in symptomatic patients. First, the results show that full vaccination rate is consistently negatively correlated with the number of new COVID cases, whereby a 10 percent increase in vaccination rate is associated with a 1.3 to 1.7 percent decrease in new COVID cases. Second, the magnitude of vaccination is shown to contribute significantly to moderating severe disease progression. On average, a 10 percent increase in the rate of vaccination leads to a reduction of about 5 percent in the number of new hospitalizations, 12 percent decrease in the number of new intensive care patients and 2 percent reduction in the number of new deaths. Finally, by comparing the data for the same period between 2020 and 2021, we also check how well vaccination performs as a substitute for lockdowns or other stringent government protection measures. Results suggest that vaccination appears to be an effective substitute for more stringent government safety measures to contain the spread of COVID infections only at a sufficiently high vaccination coverage threshold (more than 70 percent). On the other hand, vaccination is shown to be quite effective in limiting the more severe course of the disease in symptomatic patients already at moderate vaccination coverage (between 40 and 70 percent). This suggests that vaccination can also help to reduce pressure on the health system and thus benefit the overall public health of society. On the other hand, the efficient rollout of vaccines could explain the favourable economic performance in the second half of 2021 despite the severe outbreak of the delta variant

• Language: English
• Keywords: pandemic, COVID-19, vaccination, vaccination rate, lockdown
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: EF - School of Economics and Business
• Publication status: Published
• Publication version: Version of Record
• Publication date: 24.04.2022
• Year: 2022
• Number of pages: 28 str.
• Numbering: Vol. 10, art. 678
• PID: 20.500.12556/RUL-136443
• UDC: 614
• ISSN on article: 2076-393X
• DOI: 10.3390/vaccines10050678
• COBISS.SI-ID: 106219779
• Publication date in RUL: 04.05.2022

Record is a part of a journal

• Title: Vaccines
• Shortened title: Vaccines
• Publisher: MDPI
• ISSN: 2076-393X
• COBISS.SI-ID: 520262937

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 24.04.2022

Secondary language

• Language: Slovenian
• Keywords: pandemija, COVID-19, cepljenje

Projects

• Funder: EC - European Commission
• Funding programme: H2020
• Project number: 822781
• Name: Growth Welfare Innovation Productivity
• Acronym: GROWINPRO