MarketWatch Logo Go to the homepage.

Read full story

U.S. COVID-19 cases more than double in two weeks as delta variant spreads fast, and WHO warns ‘pandemic nowhere near finished’

Read full story

Delta variant drove COVID-19 cases higher across the globe last week — including in the U.S.

Read full story

WHO head slams countries for ordering millions of COVID booster shots, when much of the world has not even vaccinated the most vulnerable

Read full story

Fauci says COVID-19 vaccine boosters not needed for now, with delta variant mostly infecting the unvaccinated

Read full story

Delta variant of COVID-19 is forcing Asian countries to lock down, while Africa suffers its worst week a year and a half into the pandemic

Read full story

Delta variant of COVID-19 could reverse trend of declining cases and deaths in the U.S., report warns

Read full story

New daily COVID-19 cases and deaths spike to 6-week highs as delta variant spreads rapidly

Read full story

Israel says Pfizer vaccine just 64% effective in real world as delta variant continues to spread rapidly

Read full story

Study finds Pfizer and Moderna vaccines may offer COVID protection for years, as Australia struggles to contain delta variant

Read full story

Rising COVID-19 cases in California highlight risks of delta variant, as WHO head warns world in dangerous period of pandemic

Read full story

Delta variant of COVID-19 creates surges in Europe and Asia, as Euro 2020 soccer tournament sparks outbreak

Read full story

More than 3 billion COVID vaccine shots administered globally, but unevenly. Delta variant now in 96 countries

Read full story

WHO says delta variant of COVID means even vaccinated people should keep wearing face masks, as more Asian cities lock down

Read full story

Global tally of COVID cases top 180 million as fast-spreading delta variant continues to alarm experts

Read full story

Brazil and Russia see fresh wave of COVID cases, showing pandemic is far from over in many places

Read full story

Delta variant of SARS-CoV-2 is now in 85 countries and accounts for 20% of U.S. infections in past two weeks

Read full story

WHO warns poorer countries are not getting fair share of COVID vaccine supply, as Colombia passes 100,000 deaths

Read full story

30 states likely to miss President Biden’s July 4 vaccination goal, and Brazil’s death toll has topped 500,000

Read full story

U.S. moves to fill gap in treatments for COVID, as Delta variant creates worrying spike in new cases in the U.K.

Read full story

CureVac says its COVID vaccine was poor match against 29 COVID variants, as global case tally tops 177 million