Can the US vaccinate enough of its population to prevent hundreds of thousands of deaths before new and more contagious COVID-19 variants take hold? And will these vaccines even be effective against more adaptable mutations of the virus? Surgeon and public health expert Dr. Atul Gawande, most recently of the Biden/Harris COVID-19 Transition Task Force, joins Ian Bremmer on GZERO World to discuss the latest in the global effort to vaccinate our way out of this pandemic. He also explains why people should get the Johnson & Johnson vaccine if offered the chance, despite its lower overall efficacy rate compared to the mRNA-based vaccines from Pfizer and Moderna.

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Armed security personnel stand guard near the Serena Hotel in Islamabad, Pakistan, on April 19, 2026. Heightened security measures were implemented around the venue ahead of the scheduled second round of technical-level talks between U.S. and Iranian delegations, aimed at reaching a negotiated settlement to the weeks-long conflict that has disrupted global energy supplies.
Middle East Images via Reuters Connect

It’s unclear if the second round of US-Iran talks will go ahead in Pakistan after the US Navy intercepted and seized an Iranian-flagged cargo ship outside the Strait of Hormuz this weekend.