Use the tissue culture to grow new viruses. You are about to create a live-attenuated vaccine, which means that you need to alter a pathogen—in this case a measles virus—so that it will still ...

A recent study elucidates some of the changes that occur in the body after inoculation with a tuberculosis vaccine. The first-of-its-kind study follows on the heels of ethicists’ urging vaccine ...

Figure 1: Development of an attenuated vaccine by two classical methods and the proposed method of Coleman et al. 1. Live attenuated vaccines have saved millions of lives and days of sickness by ...

The isolation of influenza virus 80 years ago in 1933 very quickly led to the development of the first generation of live-attenuated vaccines. The first inactivated influenza vaccine was ...

Live-attenuated viral vaccines (LAV) have been used safely for several decades in healthy individuals to protect against diseases with great success. In immunocompromised hosts their use is ...

Attenuated vaccines are composed of live but weakened viruses or bacteria that effectively stimulate the immune system without causing illness in healthy individuals. These vaccines play a crucial ...