Trial started , more then 100people in Seattle and Washington have received the vaccine in first stage the trial is sponsored by the white house
The immune system is being tested and scientists need to understand how it fights viruses, the answers to all this questions may come from the infected people , researchers says not understanding the virus should not keep us from starting a safety trial on healthy people .
Vaccines makes the body generate a natural response against an infection without being exposed to the virus if a person is infected with other viruses after recovery the person will be protected from reinfection in the case we do not know if a person can get reinfected says Michael diamond , a viral immunologist
