Just heard a vaccine expert state: "still many questions, such...

Just heard a vaccine expert state: "still many questions, such as how effective the vaccine is by ethnicity or age and how long immunity may last."

Vacs will continue to be developed and will get better, but it will all take time, just as it will hitting the big fella with ALK.
Heard some reports some vaccines may only have a short coverage for immunity, not a lifetime cover. I recall being herded in at school and a dirty great big silver needle inserted in our little kinder arms. A couple fainted and hit the deck. That made you feel so much better down the line. Then there was the polio red stuff down the throat. Distant memories. There is a long way to got yet with vaccines and they, like the Boda holes are yet to be proven. Both will in time. As sure as Donald will tweet......