UNITED NATIONS, United States (AFP) — The United States will announce “additional commitments” on fighting Covid-19 when the White House hosts a summit on the pandemic on Wednesday, President Joe Biden said Tuesday. Biden said the commitments would be announced “as we seek to advance the fight against Covid-19 and hold ourselves accountable around specific targets on three key challenges — saving lives now, vaccinating the world, and building back better.” © Agence France-Presse