Late 2019 and 2020 was challenging year for the whole world. We all saw the havoc COVID-19 recked. Humanity was at its toes to develop a method of eradicating or at least controlling this infection. After long months of research, top scientists developed an effective vaccine against SAR-COV-2 and, now, we have a booster shot to increase the former vaccine's effectiveness. However, there are some specifications to note before you take it. You can ...