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Does the sixth wave of COVID-19 break in Okinawa?
1Department of Economics, Okinawa International University Okinawa Japan.
Background:
We aimed to forecast possible situations of the COVID-19 spreading for Okinawa Prefecture in Japan.
Methods:
The VSIIR model is proposed to extend the SIIR model to include vaccine effects where the parameter denotes the vaccination rate and is treated as a control parameter on which possible situations for Okinawa would depend.
Results:
It is shown that the infection ends without spreading if is satisfied where refers to the antibody duration, for infection and for vaccination, respectively.
Conclusion:
It is important to set a vaccination policy that can save lives and maintain daily life at the same time.
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