Innate immunity and vaccine, these two concepts have gained the utmost importance amidst the COVID-19 pandemic. The concept of vaccination dates back to the 17th century. The discovery of vaccines led to the eradication of several life-threatening diseases such as polio, smallpox, diphtheria, measles, and tetanus.
Currently, vaccines are available for more than 20 dreadful diseases, and vaccination effectively prevents around 2-3 million deaths annually. With the advances in technology and scientific research, scientists can develop newer vaccine modalities that are more beneficial in preventing diseases. Take the short quiz to refresh your knowledge on vaccines and immunization.