Also Read | The race to take fashion retail onlineWhy delay the second dose?In clinical trials, companies tested specific doses of their vaccines at precise time intervals to generate evidence showing how well they work.
All COVID-19 vaccines approved, so far, are designed to teach the immune system to recognise and defend against the virus with a first dose, and then provide a second booster dose to reinforce that lesson.Faced with a fast-spreading pandemic and new, more transmissible coronavirus variants, some countries are hoping to widen immunisation by giving some protection to as many people as possible with a first dose, and delaying second doses.Maximising the number of people who have partial immunity "should reduce the number of.