Recent analyses of populations experiencing further waves of COVID-19 infection based on the Delta variant indicate that new challenges are emerging in the fight against the COVID-19 Pandemic: Some in-use vaccines are failing to provide long-run protection against the rapidly evolving COVID-19 virus, whereas others appear to be showing better long-term performance. See our analysis in our Industry Update 11.
The current situation with vaccines world-wide strongly supports the following hypotheses:
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