By Dr. Seleem R. Choudhury
Next to clean water, no single intervention has had such a dramatic effect on decreasing mortality as has the widespread introduction of vaccines (Howson, Howe, & Fineberg, 1991). The World Health Organization (WHO) describes immunization as a “key component of primary health care and an indisputable human right,” as well as “one of the best health investments money can buy” (World Health Organization, 2020). Vaccines play a critical role in the prevention and management of the outbreak of infectious diseases. The rapid spread of COVID-19 during the months-long wait for a vaccine have highlighted their importance to public health.