The world is in the midst of the deadly Covid-19 pandemic . An increment in the numbers of daily cases around the world is terrifying but the vaccination drives around the world brought some relief among the people. The researchers worked hard and round the clock to find a vaccine to this deadly virus. A number of vaccines are in the market today. But there are various side effects of these vaccines causing fear among the people from being vaccinated. Let us learn about the types of side effects observed after vaccination. WHAT IS A VACCINE? A vaccination is a kind of medicine which trains the immune system to fight a disease or germ. It prepares the body to make antigens or antibodies. A vaccination is generally administered through needles. A vaccine can take upto 10 years to develop and to be ready to use for public. Why do we need a vaccine? The only way for life to get back to normal and the only way to bring an end to this imbroglios disease is a