Predicting exactly how things will play out is difficult, but there are some things we can forecast with a relative degree of confidence. Suppressing the pandemic quickly therefore has become an even more urgent task. Additionally, the two doses of the Pfizer vaccine need to be given 21 days apart, with full immunity arriving seven days after the second jab. In this case, vaccines are unlikely to change much initially – the disease will have too much momentum in early 2021. If it is, we’ll see a decline in COVID-19 cases, perhaps as early as spring 2021.
Source: Philippine Star December 31, 2020 10:41 UTC