In vaccine race last lap, the key steps for India

Evaluation of candidate vaccines for COVID-19 should be done on technical parameters and programmatic suitability. An ideal vaccine would provide all of these — immunity that is of a high degree (90% + protective especially against severe illness), broad scale (against different variants) and durable (at least five years if not lifelong); a vaccine that is safe (little or no side-effects and definitely no serious adverse effects); a vaccine that is cheap (similar to current childhood vaccines); a vaccine that is programmatically suitable (single dose, can be kept at room temperature or at worst needs simple refrigeration between 2°C and 4°C, needle-free delivery, and a vaccine that is available in multidose vials, has long shelf life and is amenable to rapid production. (Read More)

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