How far are we from a vaccine

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  


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