(Bloomberg) — The U.S. is “at another pivotal moment in this pandemic,” with Covid-19 cases once again climbing and beds at some hospitals filling up, Centers for Disease Control and Prevention Director Rochelle Walensky said. In response to surging caseloads and hospitalizations, Texas is dispatching people to Walmarts around the state to encourage younger people to get vaccinations inside. German Chancellor Angela Merkel sounded the alarm on surging cases tied to the delta variant, saying numbers could double within two weeks. In the U.K., vaccine certificates could be required at business conferences, music festivals and sports events in England from September. China pushed back against the World Health Organization’s call for another probe into the coronavirus’s origins that includes examining whether it leaked from a lab. Global Tracker: Cases top 192.2 million; deaths exceed 4.1 million. Vaccine Tracker: More than 3.71 billion doses administered ‘Ridiculous’: Vaccine myths cripple U.S. uptake as delta surges. Study shows costs of vaccine inequity for low-income countries. Why the vaccinated are still at risk from the coronavirus. Tokyo’s fraught Olympics show glaring scar of Covid.