Clinical trials

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


In contrast with the US, Chile has opted to provide COVID-19 vaccines for children ages 3 and up, expanding possibilities for vaccines available for very young children.

A medical worker administers a shot of Russia's Sputnik V coronavirus vaccine at a vaccination center in Gostinny Dvor, a huge exhibition place in Moscow, Russia.

Russia tests vaccine science by combining Sputnik and Astrazeneca in new trial

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  

A member of the National Guard, center, administers the Moderna COVID-19 vaccine to a farmworker.

Vaccine mandates aren’t new. But do they work?

Emine Aslan, a doctor on the vaccine team, prepares a COVID-19 vaccine for a patient in Ömerova

Turkey’s health workers hike steep mountains to deliver vaccines in isolated villages

A stadium is set up as a vaccination drive site in France.

French citizens can choose a preferred jab. Some say ‘vaccine shopping’ leads to waste.

Health & Medicine

There are still a lot of misunderstandings about COVID-19 vaccines in France, said Brigitte Abel, who manages a call center for vaccine appointments.

Anita Anand, Canada's Minister of Public Services and Procurement opens a box with some of the AstraZeneca COVID-19 vaccine doses that Canada has secured through a deal with the Serum Institute of India in partnership with Verity Pharma at a facility in M

A Canadian company challenges vaccine rules to increase access 


Biolyse’s unconventional move to try to produce single-dose COVID-19 vaccines adds to a fierce global debate about who controls vaccine knowledge and production in a pandemic.

Several long lines of traffic cones are shown winding around an empty parking lot.

Discussion: Coronavirus vaccine acceptance and public attitudes

There seems to be a light at the end of the pandemic tunnel with the approval of several vaccines and the widespread rollout of vaccination campaigns around the world. But questions about vaccine acceptance persists. As part of The World’s regular series of conversations about the coronavirus, reporter Elana Gordon moderated a discussion with Harvard public opinion expert Gillian SteelFisher, who discussed public attitudes toward COVID-19 vaccines.

A person receives a jab from a health worker wearing white gloves

AstraZeneca COVID-19 vaccine 79% effective, US trial shows

Top of The World

The AstraZeneca vaccine is 79% effective in preventing symptomatic COVID-19 and 100% effective in stopping severe disease and hospitalization; Israel holds its fourth parliamentary election on Tuesday; torrential rainfall in Australia has forced mass evacuations.

South African President Cyril Ramaphosa delivers his fifth State of the Nation Address to a restricted parliament in Cape Town, South Africa, Thursday, Feb. 11, 2021. 

South Africa changes course on vaccine rollout after disappointing study

The government has secured 9 million doses of the Johnson & Johnson vaccine instead, which researchers have said is effective against moderate and severe forms of the coronavirus new variants. They have also secured millions more from the global COVAX and Pfizer.