Anastasia, 3, is held by her mother, as she receives treatment at a schoolhouse that has been converted into a field hospital, in Mostyska, western Ukraine, Thursday, March 24, 2022.

The war in Ukraine is hampering efforts to stop a polio outbreak


Just 10 days before the war began last February, Ukrainian officials launched a nationwide vaccination campaign to stop a rare polio outbreak in the country. But the war has made controlling the outbreak nearly impossible.

A 5-year-old boy gets his first dose of China's Sinovac vaccine, at a vaccination center in Santiago, Chile, Monday, Dec. 6, 2021. 

Why Chile moved ahead with COVID vaccines for the very young

A vial of the Moderna vaccine for the coronavirus.

What does Moderna owe the world?

Palestinian laborers work building new houses in the West Bank Jewish settlement of Bruchin near the Palestinian town of Nablus

Israel approves nearly 3,000 new Jewish settlement homes in the West Bank

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A nurse prepares a syringe for a patient infected with the coronavirus in the intensive care unit at the Syrian American Medical Society Hospital

Discussion: The challenges of vaccinating people in conflict zones

Eusebio Torres waits to be vaccinated as a nurse prepares the dose of the Cuban Abdala COVID-19 vaccine at the Gustavo Aldereguia hospital in Cienfuegos, Cuba, Sunday, May 30, 2021.

Cuba’s promise of a homegrown COVID-19 vaccine  


Cuba, a world leader in medicine, is the first in Latin America to develop its own COVID-19 vaccine.

Author Ngozi Okonjo-Iweala poses for the camera in a dark blue outfit

WTO head Ngozi Okonjo-Iweala on vaccines: ‘We have to solve the health crisis if we want economic recovery’


Ngozi Okonjo-Iweala, the first African and female director-general of the World Trade Organization, talks to The World about her work priorities and her recent book, “Women and Leadership: Real Lives, Real Lessons.”

A nurse administers a shot to an elderly man wearing a white T-shirt and black pants at his home.

Dual citizens in Mexico seek vaccine options in the US as rollout lags


Mexico’s vaccine rollout has been slow and cumbersome. Mexican residents with US citizenship, permanent residency or valid visas are starting to take matters into their own hands.

A health care worker prepares a dose of Russia's Sputnik V COVID-19 vaccine, at the Del Norte Hospital in El Alto, Bolivia, on Saturday, Jan. 30, 2021.

Sputnik V vaccine is nearly 92% effective — a ‘political win for Putin’


Public health expert Judy Twigg says that the Sputnik V vaccine study increases Russia’s soft power influence around the globe.

A health worker gives an injection to a mock patient during a coronavirus vaccine drill in Bali, Indonesia.

China’s ‘vaccine diplomacy’ fills void in developing world left by US ‘vaccine nationalism’


Expanding vaccine access helps China reframe the narrative of the pandemic and improve China’s image, said Yangzhong Huang, a senior fellow for global health at the Council on Foreign Relations.