<div>TEXT</div><div>N. W. Ruktanonchai et al. assessed the impact of coordinated COVID-19
exit strategies across Europe (1). As shown in Fig.1 (2), the resurgence
of deaths due to the COVID-19 can be observed in Europe so that the
effective policy on isolating-all-at-risk strategy should be implemented
as soon as possible for mitigating the pandemic. The effectiveness of
the policy against the COVID-19 is justified by the number of deaths due
to the COVID-19 (3,4). Since we have currently no vaccine and effective
therapy against the COVID-19, we have one and only one policy based on
isolating-all-at-risk strategy (4). Why not implement the real-time
digital defense immediately in Europe. Remember that more than 1000
persons in Europe are killed daily due to the COVID-19 as of Oct. 19 in
2020.</div><div>Conclusion</div><div>Expert scientists should know what we should do for mitigating the
resurging pandemic, regardless of politics.</div>