When will a coronavirus vaccine be ready?

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ASTRAZENECA PLC (NASDAQ: AZN) Delayed: 92.77 --0 (-0%)
Previous Close $92.77    52 Week High $35.04 
Open $92.77    52 Week Low $26.97 
Day High $92.77    P/E N/A 
Day Low $92.77    EPS $0.00 
Volume 462,824       

Marina Biotech, Inc. (NASDAQ: MRNA) Delayed: 202.43 +2.33 (1.16%)
Previous Close $200.10    52 Week High $0.52 
Open $186.90    52 Week Low $0.08 
Day High $203.82    P/E N/A 
Day Low $181.65    EPS $-3.80 
Volume 7,718,048       

Pfizer Inc. (NYSE: PFE) Delayed: 30.07 +0.04 (0.13%)
Previous Close $30.03    52 Week High $37.39 
Open $30.00    52 Week Low $28.25 
Day High $30.31    P/E 18.22 
Day Low $29.96    EPS $1.65 
Volume 4,441,790