All opened Covid-19 vax vials must be used within 4 hours
All opened Covid-19 vax vials must be used within 4 hours All opened Covid-19 vax vials must be used within 4 hours ByChethan KumarChethan Kumar / Updated: Jan 11, 2021, 22:23 IST (This story was first published in The Times of India on Jan 11, 2021) Bengaluru: Covid-19 vaccines — at least the first few batches which are likely to be used beginning January 16 — should be used or discarded within four hours of the vial being opened since there are no vial monitors at present. Due to non-availability of vaccine vial monitors (VVMs) because of the emergency, the government has done away wi...