Tag Archives: ribonucleic acid

The wonderful world of vaccines

Jayant Radhakrishnan Chicago, Illinois, United States   A patient with his whole body covered with smallpox lesions.┬áSource: Centers for Disease Control and Prevention, photo by Barbara Rice. Epidemics and pandemics became an issue about 10,000 years ago when hunters and gatherers became farmers and began to live in communities. Smallpox was one of the first […]