U.S. markets open in 1 hour 39 minutes
  • S&P Futures

    4,409.50
    +20.00 (+0.46%)
     
  • Dow Futures

    34,952.00
    +120.00 (+0.34%)
     
  • Nasdaq Futures

    15,023.75
    +68.00 (+0.45%)
     
  • Russell 2000 Futures

    2,241.00
    +19.40 (+0.87%)
     
  • Crude Oil

    72.97
    -0.98 (-1.33%)
     
  • Gold

    1,806.30
    -6.30 (-0.35%)
     
  • Silver

    25.48
    -0.07 (-0.28%)
     
  • EUR/USD

    1.1885
    +0.0010 (+0.08%)
     
  • 10-Yr Bond

    1.2390
    0.0000 (0.00%)
     
  • Vix

    18.43
    +0.73 (+4.12%)
     
  • GBP/USD

    1.3896
    -0.0010 (-0.07%)
     
  • USD/JPY

    109.5700
    -0.0450 (-0.04%)
     
  • BTC-USD

    39,515.71
    -2,025.45 (-4.88%)
     
  • CMC Crypto 200

    963.56
    +13.66 (+1.44%)
     
  • FTSE 100

    7,083.95
    +51.65 (+0.73%)
     
  • Nikkei 225

    27,781.02
    +497.43 (+1.82%)
     

Covid-19 Booster Shots: When Might You Need One and Why?

Companies are working on coronavirus booster shots, as some early studies suggest antibody levels against Covid-19 wane with time, making boosters more necessary. We explore what that means for individual consumers. Illustration: Laura Kammermann/The Wall Street Journal