A team of doctors in Saudi Arabia has separated a Yemeni baby from her parasitic twin, authorities said, marking their 50th successful operation on conjoined twins.

China raced Saturday to contain its worst coronavirus outbreak in months, as health officials blamed the highly infectious Delta variant for a surge in infections spanning 14 provinces.

Britain's state-run healthcare service warned Saturday that devices used by people with COVID to monitor blood-oxygen levels at home may give inaccurate readings for people with darker skin.