Against the new type of coronavirus (Covid-19) pandemic that killed 1 million 300 thousand people all over the world. The vaccine race has come to an end. Pfizer / BioNTech, stating that they have terminated their final stage clinical trials. They announced that the vaccine they developed provided more than 95 percent protection and was safe. AstraZeneca / Oxford, seen among the most promising vaccines in the world at the beginning of the pandemic. In the vaccine, the last stage trials are still ongoing. In a statement by AstraZeneca, in the second stage clinical trial results of the experimental corona virus vaccine. It is stated that it creates an immune response in the elderly who are vulnerable to the pandemic.

In the second stage clinical trials of Oxford / AstraZeneca, 160 were between the ages of 18-55. A total of 560 healthy volunteers, 240 of whom were over 70 years old, participated.