The world’s first comprehensive third dose corona virus vaccine trials have begun: Combinations of 7 different vaccines will be tried

Within the scope of the largest vaccination campaign in history, 1.54 billion doses of vaccine have been administered in 176 countries, including Turkey. However, experts are working on a booster vaccine that can be administered as a third dose, due to the new mutations of the emerging corona virus and the current effect of the vaccine is estimated to last between 6 months and a year. The most comprehensive research in this area was initiated…

"The world’s first comprehensive third dose corona virus vaccine trials have begun: Combinations of 7 different vaccines will be tried"