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Earlier we, TJJ and DD, had written in IJME, that during the pandemic with high case-fatality in those above 65 and younger adults with chronic lung, heart or kidney diseases or diabetes, vaccination must be administered early as a life-saving procedure (1). It was pointed out that protection delayed may be protection denied to drive home the urgency of vaccination for saving lives. At that time, Phase III vaccine trials were in progress and we had adequate data on safety, but efficacy had yet to be measured. Good immunogenicity had already been documented in Phases I and II in which there were no signals of safety problems. Efficacy was "on promise" when we argued for early vaccination of those at risk of death.

The coronavirus disease 2019 (COVID-19) pandemic will transition into endemic phase with perpetual risk of severe disease and high mortality in vulnerable people - the elderly and those with co-morbidities, unless eradicated. Although several vaccines are already available to rich countries, low-income countries face gross vaccine inequity. We propose COVID-19 eradication to address both problems. An eradication program will ensure vaccine equity and international cooperation to establish public health surveillance and high quality laboratory diagnostic services in all countries. Eradication is biologically and technically feasible. We hope the World Health Organization will accept the proposition and design the necessary strategy without delay.

The Covid-19 pandemic is raging, taking heavy toll of lives and livelihoods. The need for safe and effective vaccine(s) is urgent. Vaccine research has progressed rapidly and a few vaccine candidates have passed trial Phases 1 and 2, confirming reasonable safety and immunogenicity parameters. They are ready for large scale Phase 3 trials to quantify protective efficacy, if any, and to detect uncommon but serious adverse effects, if any. These developments present unprecedented opportunities and challenges, scientific and ethical. Globally hundreds die every day due to Covid-19, and emergency/compassionate use of vaccine candidates that are ready for Phase 3 trials are likely to save lives. We perceive an ethical imperative to allow such vaccination for those at high risk of death and voluntarily make such informed choice - for them protection delayed will be tantamount to protection denied.